two other possible causes of constipation that i have heard about are underactive thyroid and liver not producing enough bile. do seem to have symptoms of either of these?

I would suggest a certified Colon Therapist. Here's a list of some in Cananda:

F. Danielle Allen
168 Joseph Street
Victoria, BC V8S 3H5
Canada
Phone: 250-381-1153
Email: info@coloncare.ca
Cert. Level: None

Irma Attwater
5103 Brockington Rd. N.W.
Calgary, Alberta T2L 1R7
Canada
Phone: 403-284-9650
Cert. Level: Foundation Level

Andr?e Bergeron
ETHERA / REGENERATION CENTER BERGERON
1012 Montroyal
Montreal, Quebec H2J 1X6
Canada
Phone: 514-865-4073
Cert. Level: Instructor Level

Michelle Dubyk
CELLULAR HEALTH, ZINC.
10902 130th St.
Edmonton, Alberta T5M 0Z3
Canada
Phone: 780-482-7978
Cert. Level: Foundation Level

Janette Engen
COLON CARE, INC
2810 -6 Ave. South
Lethbridge, Alberta T1J 1E3
Canada
Phone: 403-327-6443
Cert. Level: Advanced Level
National Board Certification: Yes

Sandy Fisher, RMT
SOLIS COLON HYDROTHERAPY
not available
Edmonton, Alberta T5N 1M1
Canada
Phone: 780-488-1552
Email: donf@athabascau/ca
Cert. Level: Advanced Level

Christina Fraser, RN
ARCADY HOLISTIC CLINIC
5 1922 9 Ave., S.E.
Calgary, Alberta T2G 0V2
Canada
Phone: 403-263-6568 Fax: 403-263-6568
Cert. Level: None

R.N. Dee Lewis Grant
GENESIS NATURAL HEALTH CENTER
603 Davis Dr.
Newmarket, Ontario L3Y 2P7
Canada
Phone: 905-895-8304 Fax: 905-895-9594
Cert. Level: Instructor Level

Sharon Hample
FAMILY WHOLE HEALTH THERAPIES
10140 - 117 St.
Edmonton, Alberta T5K 1X3
Canada
Phone: 780-448-5884 Fax: 780-424-5906
Cert. Level: Advanced Level

Marie Hardiment
GENESIS NATURAL HEALTH CENTRE
603 Davis Dr.
Newmarket, Ontario L3Y 2P7
Canada
Phone: 905-895-8304 Fax: 905-895-9594
Cert. Level: Advanced Level

Norma J. Hope
LIFE SYNERGY, INC.
101-11760 109 Street
Edmonton, Alberta T5G 2T8
Canada
Phone: 780-717-9633 Fax: 780-662-2620
Email: life.synergy@business-aid/net
Cert. Level: Advanced level
National Board Certification: Yes

Jerome Emile Labonte
DHARMA SPIRIT
102 Demers Drive
Fort McMurray, Alberta T9H 2B1
Canada
Phone: 780-743-1346
Cert. Level: None

Katherine Christine Labonte
DHARMA SPIRIT
102 Demers Drive
Fort McMurray, Alberta T9H 2B1
Canada
Phone: 780-743-1346
Cert. Level: None

Jackie-Lee Latimer
BODY WISDOM WITHIN, INC.
10902 130th St.
Edmonton, Alberta T5M 0Z3
Canada
Phone: 780-482-7978
Email: cellularhealth@shaw.ca
Cert. Level: Instructor Level
National Board Certification: yes

Tara Ledoux
Canada
Cert. Level: None

Elena B. Lopez
THE HAPPY COLON
#360-522 7th Street
New Westminister, BC V3L-5H7
Canada
Phone: 604-525-8400 Fax: 604-525-8400
Cert. Level: None

Anthony Maurantonio
Canada
Cert. Level: None

Elizabeth Mazzei
EXODUS COLON HYDROTHERAPY
201-20395 Lougheed Hwy
Maple Ridge, BC V2X 2P9
Canada
Phone: 604-465-8531 Fax: 604-465-3910
Email: elizabeth@exoduscolonics.com
Cert. Level: None

Emily Newbigging
LAKEVIEW WELLNESS
9326-176 Ave.
Edmonton, Alberta T5Z-2C3
Canada
Phone: 780-456-7270
Cert. Level: None

Hendrik J.M. Pelser
NATURAL HEALTH OUTREACH
160 Kinney Avenue
Pentiction, British Columbia V2A 3N9
Canada
Phone: 250-492-7995
Cert. Level: Instructor Level

Patricia Stewart
INTEGRATIVE MEDICINE INSTITUTE
170-1402 8th Ave. NW
Calgary, Alberta T2N 1B9
Canada
Phone: 403-233-0917
Cert. Level: None

Christina Tavares-Fuerderer
HYDRO HEALTH, INC.
1045 Carter Crest Road
Edmonton, Alberta T6R 2M6
Canada
Phone: 780-989-5884
Cert. Level: None

Brenda Taylor
BRENDA TRYLOR, RNC
3 Jenkins St.
Yarmouth, Nova Scotia B5A 3E2
Canada
Phone: 902-742-8822 or 866-223-5778 Fax: 902-742-8822
Cert. Level: None

R.N. Wilhelmina A. M. Van Maurik
HEALTH AND HAPPINESS HOLISTIC, LTD.
101-835 - 7th Ave. S.W.
Calgary, Alberta T2P-1A2
Canada
Phone: 403-266-1797
Email: health@colonics.ca
Cert. Level: None

Tinesja Vanel
PRIME VITALITY
2470 Lampman Pl.
North Vancouver, BC V7H 1M5
Canada
Phone: 604-929-7452 Fax: 604-929-7143
Cert. Level: Instructor level
National Board Certification: Yes

Beverly Wasyk
9407 96th St.
Edmonton, Alberta T6C 3Y9
Canada
Phone: 780-469-2692
Cert. Level: None

R.N. Carole A, Westmacott
IDEAL HEALTH
346 Lady MacDonald Crescent
Canmore, Alberta T1W 1H6
Canada
Phone: 403-678-2737 Fax: 403-678-2737
Cert. Level: None

the best way for constipation is through Lavar H2O Cleansing coupled with Lavar pH Adjustment. you can get more detail online at http://www.LavarSpa.com