Hi, I am in my early fifties, two years ago I was diagnosed with type 2 diabetes which is actually under control my a1c is 6,3 but lately I have been experiencing some lightheadedness and some bad headaches, I take co q ten which I ve stopped because I ve read that that can contribute to a lightheaded feeling and headaches,. but I take care of my dad who is paralized on the left side of his body, so I do quite a bit of heavy lifting. I m super busy, but I just hope it s nothing serious. Today I experienced a bad headache with pain over my left eye. It s finally gone, but I was wondering what could be causing them. I also take prilosec for heartburn. I thought maybe a vitamin b definciency. Thanks. Since stoppping the CoQ10 I haven t been feeling lightheaded.