I am a 20 year old female. I have Positional orthostatic tachycardia (POT) syndrome, along with another slew of medical problems.

As of the past few days, my medical problems have worsened. I'm having bad blurred vision (I'm even having trouble seeing the computer screen, so excuse any typos), heaviness in my legs, tingling in my feet. I tend to collapse when I stand up. That I know is due to the POT syndrome. It feels like my heart is beating way faster than normal, but neither myself nor my mother is very good at taking my pulse. It just feels FAST. I'm quite lightheaded, and am having trouble thinking clearly.. my mind feels all "foggy", for lack of a better term.

I really don't want to go back to the neurologist, as I was just there on Thursday. But if I need to, I'll call him up. He did say to call him if things got worse. I just don't want to have to call him.. so I figured I'd ask for advise somewhere first to see if I'm just overreacting. This has been going on for a few days - it started getting bad on Friday, I think.

Thanks.