Hi, I'm new here. I'm wondering if POTS could be the reason for my symptoms. I've always described myself as a low-energy kind of person. I just never had the get-up-and-go energy that others had. For years, most days I feel like I never fully woke up until somewhere between 11am-2pm and then by the time I was feeling fully awake, I was starting to get tired from the day's activities. On family outings to the beach or a hike, the sun would give me a headache and I'd need to take breaks more than the others. I've also gotten very mentally foggy over the past 5 years. It started when I was pregnant with my first child and I can remember sitting in my boss's office talking about something important and finding my words coming out in a jumble. I can't do simple math like making change at the store. I find it very hard to focus on any type of mental work. I also get pounding headaches that begin within a minute of getting out of bed in the morning and take hours, plus 4 advil and 2 cups of coffee, to relieve. The fatigue was to the point that I was just about to make an appointment with my GP a few weeks ago to talk about it, when I learned that my cousin was diagnosed with POTS. I had never heard of it before, but as I read about it, I wondered if this could be my problem as well. The related symptoms I have include fatigue, headaches, mental fogginess, irritable bowel, excessive urination, migraines (sporadically), intolerance to sun/heat (although I like hot baths), aching neck/shoulders (this is almost all the time and I just figured I slept funny or spent to much time at the keyboard, but I could especially relate to one story on here who said she feels it in her shoulders after a few sips of alcohol). I've read all the stories posted on the main site and had a little time to look through the forum. So, I tried to do a poor-mans tilt test at home at various times of the day on different days. Here are my results from that: Test 1 Time HR BP 8:40am 76 101/60 lying down 8:42 98 110/72 standing 8:44 101 112/77 " 8:46 108 110/75 " 8:49 105 112/76 " 8:52 62 102/57 lying back down Test 2 Time HR BP 7:23am 67 101/60 lying down 7:25 114 109/71 standing 7:29 134 103/73 standing - felt like I was going to puke 7:33 57 103/59 lying back down Test 3 Time HR BP 7:22am 78 104/65 lying down 7:24 110 110/70 standing 7:26 105 114/75 " 7:30 116 107/70 " 7:32 89 120/76 sitting down Test 4 Time HR BP 12:10pm 63 101/62 lying down 12:12 92 113/74 standing 12:17 97 110/70 " 12:20 98 113/73 " 12:23 68 102/58 lying down Test 5 Time HR BP 10:59pm 70 99/62 lying down 11:01 69 117/75 standing 11:04 80 113/78 " 11:09 87 117/78 " This morning I was putting on make-up a few minutes after getting out of bed and I felt that pounding headache coming on, so I took my BP and got a HR of 114 and BP of 106/72, so I laid down for a few minutes and took it again and it was HR 62, BP 102/63, I laid there for a few minutes and the got up and got dressed then took it again and it was HR 96, BP 111/73. It does seem like I get the higher HR in the mornings and not so much in the afternoon or evenings. Since my HR does increase more than 30 points upon standing I do wonder if I could have POTS. But I don't have the severe symptoms that most of the stories on here describe. I don't think I've ever fainted in my life or even felt like I was going to faint. I wanted to see what the people on here thought before I go running to the doc with a self-diagnosis of a rare syndrome. Thank you for any insight anyone has to offer!