Advice on starting cleanse

Hi i hope someone can give me advice please, i have been very unwell for a long time,low cortisil,estrogen,thyroid,all crappy symptoms that go with that. I also have low functioning gallbladder. Also bacteria bad ones in gut and low minerals from hair analyiis. So im starting from scratch to rebuild myself. Im firstly thinking sort out digestive system, i need to go very gentl due to the fatigue i have. Ive started colon hydrotherapy once ever two weeks. Ive also been doing enemas, i have done garlic and probiotics and the last one i added salt to initial cleanse. This i felt burning me inside. Since my last one i was constipated and bloated and nausious for 2 days' i finally went to toilet which was small hard and covered in think yellow tough stretchy mucous stuff(sorry bout the detail) i didnt feel relieved so i just done water enema folloxed by probiotic. Can someone give me help with these:
Why im constipated between enemas
What can i do to relieve the constipation
What was this mucous on my stool
Should i start Oxypowder to my bowel cleansing' whats good to help rid myself of the bad things

Thankyou '