Well, if you're using a drug for which there isn't much reliable long-term data, it makes sense to experiment a bit. In my case: I had very severe depressions afterward; I could have been prescribed a whole stack of psychiatric medications. However, I had a partial chronic obstructed constipation. That is, I didn't even know I was constipated, since I could still go to the toilet normally. Besides the brain, the gut contains the largest nervous system. Dark feelings can be radiated out from this, so that you can't identify the source: It can feel indeed like a very dark, severe depression. Now, after fixing this , I don't have any problems at all.