I have been dealing with what I believe to be poor circulation nearly all my life, but recently my symptoms have worsened. I have always had cold hands and feet, and if I sit in the wrong position, my hands and legs will immediately start tingling. Yet, these past few months I have noticed an increase in my blackout spells from orthostatic hypotension as well as that my heart races after walking up a flight of stairs. Even lifting my book bag can set my heart racing. In my studies, I have noticed a decrease in my ability to focus and complete simple problems. I am a 19 year-old female who runs three to four times. I was diagnosed with celiac in 2014, but even after being on the gf diet, my symptoms have not decreased. Other than that I also have chronic congestion from allergies (medicine does not help) and regular knee pain (my doctor said it's just runner's knee). At this point I have been dealing with my symptoms for so long, I am not sure if I should make a big deal out of it, but I felt I should at least get someone else's advice on the matter.