Get off of the SSRIs. You are correct in assuming that they're messing with your bowel movements. The gut has a large amount of nerve endings in it and the SSRIs are completely borking it up.
Depression is a sign of mental, physical, and/or spiritual stagnation. You need a new goal and hobby to expand your life. The easiest cure is weight training. Go learn compound lifts and start eating a diet meant for strength gains. Testosterone is the biggest anti-depressent.
Also, cut down on the colonics. You only need ONE to feel better. Multiples only mask the symptom and not cure the overal problem.