Hi Carol! Yes, sometimes you feel light headed and get a slight blurred vision that comes out of no where but passes pretty quickly. My biggest issue currently is the tingling in my hands/ feet and arms/legs(not as often) I’m taking the baby aspirin and Hydroxyurea. After being diagnosed and put on the meds I had four weekly phlebotomies and everything was great so he took me off meds. Next phlebotomy was about six weeks later. Labs every two weeks, then showed platelets back just over 600 so back on the meds for a month now. I really don’t want to take them and read the tingling can be the PV and the meds can cause it also BUT my body will probably adjust to it in time. I hope so! I’m a 56 yr old female and have never had any health issues and didn’t take any daily meds until this. My husband cried and is so scared for me but I feel like I just need to stay on it and make sure I do my labs. It took a while to process… Also, many things I read on line weren’t true when I asked the oncologist, so try not to obsess with reading. KIT