I did go on google, to ask that question of.....what can cause heart palpatations, blurry eyes and flashes and tinititus....bad spelling here......and there were some answers/suggestions. See if any of them make sense in your case. My legs have been a little stronger since Friday's lymphatic massage, which the gal actually did a full body massage. But, I think it was more than a regular massage therapist would have done........don't know. Has me curious. I'm wondering if somehow it was connected to nerves, and some how , she made it better. I'm starting to think that Puzzle.....instead of getting more answers to see the whole picture, is instead........giving more questions instead of answers........Good Grief! Plus i did wrap my thighs with the red light therapy a couple times...........Guess i will never know, but am still looking for answers...........Geez!