Thanks... you know, I probably should have also mentioned I also take 20 mg of Propanolol (inderal) in conjunction with the HCTZ for BP and as a bonus to help control my migraines.... one of the regular side effects of the Propanolol is dizziness and when I had the problem, I saw my MD who checked me out thoroughly and ran bloodwork again which showed my Potassium as being very low.... I should have mentioned that too! Sorry!

I guess I just assumed that the only abnormalty in the bloodwork was that, so I assumed it must have been due to the low K.... thanks for the info though-now I know what to be aware of...