listen to Huck bro....If u do a search u will find I went through a similar thing, but it was not associated with clomid...i had headaches in the gym all the time..now I know it was due to my Blood pressure..and one day popped a few blood vessels in the back of my head, felt like a shotgun wound to the head...went to ER, thought it was an aneurism as well...had cat scans, MRI's, Spinal Tap's...and I thank the Lord everyday it all came back negative...remember AAS has a negative effect of blood clotting, so if u do have any bleeding the juice is doing u no good, so IMO, get to a Dr ASAP !! No sense in waiting it out, better safe than sorry...good luck bro..keep u in my prayers !