For the past few days, I have been having a head rush every time I stand up, I know its normal to have one after sitting down for a long time, but I was getting nearly every time I stood up, even if I had only been sitting for 5 minutes.
So far the head rushes have become less frequent, but sometimes with a head rush I will get a stabbing pain in the back of my head.
I am also really tired a lot of the time, I will sleep for 12 or more hours, be up for a couple of hours, then need to sleep again. I was wanting to exercise but just didn't have the energy to.
I also went through a weakness phase were I could barely get the energy to cut through my chicken :(
I have also notice my resting heart rate has gone up from 40 to around 50-55bpm, however this may be because I have stopped going for my weekly cycle (45-50 miles @ 15mph average). My heart is also beating a lot stronger than normal, I went for a nap but couldn't fall asleep because it was beating so strong (but not fast) that it was annoying me.
I have also had a couple of glands enlarge and become sore, but the soreness has gone away after about a day.
I have been to the doctors and had blood and urine tests, which both turned out normal.
I stayed off school for a few days, and I feel well enough to go to school, but once I get there (I cycle) I feel dizzy and lethargic and wished I hadn't come in.
I feel fine now, but I don't have much energy at all.
I am a Male aged 17.