I think that your AMH levels should give you some clarification hopefully. As I mentioned, my FSH was 15 during the cycle right after I took clomid, but my antral follicle could has always been between 12-19 and my AMH is 1.5. I also responded well to Clomid, which my doctor said is a good sign, but did not get pregnant. I did two cycles of Clomid/IUI and am now moving on to IVF. I'm just ready to get going and this is the most efficient way to do that.
According to my doctor, he does not feel I have diminished reserve, but time will tell. To your point about cysts, I was supposed to start IVF this month and had a darn cyst during my baseline appointment before I started stims. I'm not sure if it is related to clomid- from what I understand it's very normal and has no impact on future success, just an annoying delay!