Hey Mark, thanks for the response. At this point I cannot even walk down the street for more than like 5 minutes without getting a headache. I take my Heart rate while exercising and it seems that anything above 100 bpm initiates the headache unfortunately. My resting HR is only 60 but right now it does not take much to get to 100. I have to walk basically one step every couple of seconds to be okay which is kind of ridiculous