I started out exhausted and dizzy as I was upping the dose for t...

I started out exhausted and dizzy as I was upping the dose for the first 3 weeks and then magically all of my pain was gone! I have chronic back pain due to L5/S1 disc removal, bulging discs and degenerative disc disease. Everything was great until I got my period and it started for 1 day and stopped w/mild spotting (that is not normal) the Dr. suggested I was pregnant when I KNEW that I wasn't. After the 4th week on the medication my hair started falling out. 1st more strands than normal and now by the handful! It is obviously thinning. Has anyone experienced this? Is the follicle permanently damaged by the chemicals? I've since weaned myself off the medicine and am in complete pain again. This seems to be one of the rarer side effects of this medication. Has anyone experienced this?