Anyone else have nasty side effects with Clomid??

Its my second cycle on Clomid and I don't think I like it. The first cycle, my hormones went crazy on the fifth day of dosing. I always have super short & light periods, but that cycle I was going through a tampon an hour with tons of clots. I talked to my OB and he said the mechanism of action for Clomid actually should make periods lighter.

This cycle I didnt notice any hormonal changes, but my period is heavy and I am dizzy. Everytime I stand up, I feel like I might fall because I am so dizzy. And the cramps are genuinely the worst cramps I have ever felt.

I have a call in with my doctor again but am wondering if anyone else has had any undesirable side effects??