Could be low blood pressure I was told to drink plenty of water to keep my BP from dropping too low XX MG

@Mic I feel like that all the time. I also have fibromyalga. That will do that. I definitely can relate. Take care

http://www.medicalnewstoday.com/articles/253197...

All part of PD.....so sorry....my blood pressure goes up and down like a yo-yo....I get shortness of breath....I take a LOrazapa,m and in 15 minutes I am perfect...o.o5mg...the least you can take...magic

My mother has the same lightheadedness especially if she has been vey active or excited.