I have 3 issues that all started to occur around same tims whi h may or may not be delated. #1 I have been getting severe headaches for months but lately they have been getting worse and at least 2 or 3 times a week. They last for many hours sometimes 2 days. My right eye is where most of pain is and along hairline above forehead and a little on top and when I try to put ice pack on pain areas get stabbing pain from the cold cannot use icepack at all because it is so painful. Its like I can actually feel like I can feel pain in each individual vein in my head and also in the front left side of neck and a little on back side of left side of my neck. I do not have insurance so I rarely go to dr. But pain is getting unbearable. #2 ive always been athletic and very strong but now cannot keep my arms raised at all for any reason for more than a few seconds they start hurting and i get out of breath from it i feel like my heart starts beating differently so i decided to take blood pressure which was pretty normal but then i decided to take it with arm raised and my reading changed to 70 /40 pulse 113 is it normal for reading to change when arms are raised? #3 issue my right elbow also started hurting about 2 months ago and now is so bad that I cant even pick up my drink with that arm because of pain and when ive tried ice on elbow I get same horrible pain as my head when ice touches elbow. All these symptoms started a few months ago alo g with just not feeling well either I appreciate any help u can give oh very important issue I left out I went to E.R one night when all this sgarted happening and I had low potassium levels and odd shaped blood platelets followed up with a dr once after that but he didn t give me any answers