Need advice. A little scared.

Would love some advice. I have been studying everything I can get my hands on off and on for about 4 years. New to the CureZone Forums and cleansing info.

I went vegan Jan 1-05 and have lost 20 lbs. I started barley powder last week and understand it might encourage detox. I am feeling shaky, some fatigue, eyes are a little off. Am I detoxing faster with the barley powder. Am I having a Sugar issue? Will this normalize. I have been tested in the past at my request for diabetes and came up normal. Took my blood Sugar before eating the other day and it read 84.
(My grandma has adult onset diabetes so I used her glucometer.)

I have felt this feeling before when trying to do a detox diet and gave up cause I felt like this and it scared me. I want to detox and not give up.

You see, for the last 3 years I have been having some health issues that the 4 diff doctors I have seen can't find what's up and just blow me off. I am a 37 year old working mom of a 4 and 8 year old. Docs are so quick to blow me off as "Stressed."
I know my body and listen to it well enough to know something else is off balance.

Here are the symptoms I experience off and on. Please, any help would be more than appreciated. I try to give the worries to GOD but I want to do my part to help myself.

Sinus drainage, light shake in hands, varicose veins, brain fog, irritability at times, monotony of the kids being loud seems to resonate loud in my head, back ache, premature heart beats(palpitations)--all checked out fine with several tests, I have had a fibroid tumor removed from the uterus and have cystic breasts. I have also had an ache in my armpit which the doc says is the muscle/ligament/tendon aggravated where it attaches. (New to me-new ache I never had before.) Loose stools(have always gone bm 2-3 times a day.) Very loose now with diet-not diarrhea.
I assume that is ok but would like verification. Weakness, and fatigue. A few times I had what I call a spell where a wave of weakness came from head to toe. Been over 1 1/2 years since last one. Nausea at times. Just overall feeling like something is out of whack.

Big animal lover, have house pets and am a barefoot girl. I love being outdoors.
I have 4 fillings. Was allergic to about everything around me as a child. Took drop on tongue from 16 diff bottles of allergy stuff dailey for a long time in childhood. Raised on soy formula as a baby. Dairy allergy. Later consumed dairy rest of life. Parent was a smoker. I remember sitting on the floor all the time just below the layer of smoke shining in the sunbeams coming through the window. New as a kid I didn't want to be in that air. I had tons of strep throat and sinus infections- Antibiotics every time. I still have my tonsils.

Since Jan-I eat fruits and lots of veggies, raw nuts and seeds. Barleans & udo's oil and olive oil, Soy Garden butter spread by Earth Balance. Ezekial bread. No meat or dairy or fish. Whole foods. Water.

What is wrong with this body. Am I detoxing? Sugar concerns? Will the blood sugar level out eating like this eventually if that is the problem? Am I in any danger?

I Just don't feel right.