I've recently had some problems with nearly passing out and having some really severe symptoms. I'm 17 and I'm skinny, but a healthy weight. I've posted once before and I've always had lots and lots of joint problems in my legs, and my doctor always says I'm fine (though I've had a lot of leg pain for at least 8 years).
The other day I was horseback riding and working pretty hard, but nothing unusual for me. I was sweating slightly and a little warm but I felt fine and I was drinking water. The second I stopped, my blood pressure dropped like crazy. I couldn't see for about 10 seconds and I slid off my horse and sat on the ground feeling incredibly dizzy. After about 5 minutes I still felt horrible, but well enough to stand. After that I was extremely tired and had a really cold sweat and just felt terrible. Two days later I was at the barn working (not riding) early in the morning. It was about 16 degrees out, and there were fans in the barn and I was actually cold but the same thing happened and I had to leave. After my heart was beating really fast and I was out of breath for a long time. My pulse was 104 which is abnormally high for me.
The first time it happened was in the evening and I had ate two meals that day and the second time it happened I had breakfast and drank lots.
For the past 7 years I've just been really intolerant to heat. Within the last 2 years my regular body temperature dropped from 98.6-98.8 to 97.5-97.7 (I only found this strange because it's never been that low). Every time I stand up or sit up I get very dizzy and can't see for about a minute so I thought maybe my blood pressure was a bit low, but my doctor says it's normal. I also have really bad insomnia and I can never get to sleep, so someone said it might be hyperthyroidism (runs in my family) so I was tested and the results were normal (TSH-1.41, T4-17, T3-6.2)
Here are some other test results:
red blood cell-4.31
Everything seems to be fine...but these problems are interfering with my life.
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