Right, where do I start

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Went to the doctor's this morning to have an injection as I'm going to Egpyt in a few weeks. I'm not usually bad with injections or needles etc, and I wasn't nervous before or worried at all. So I went in fine and had the injection. The nurse asked if i was feeling OK and said I should just sit outside for 5 minutes to make sure I'm OK.
So I sat down outside and started reading the leaflet she had just given me. After about 2 minutes I though to myself, hang on, I'm starting to feel very sickly here, then I felt very dizzy all of a sudden......
Next thing I know I'm lying on the floor with the nurse helping me and my face is really stinging. As soon as I realised it wasn't a dream I knew what had happened and where I was etc. But I did have quite badly blurred vision for the next 30 minutes. They put me in a doctor's room that wasn't being used today and I laid down for half hour and they monitored my pulse and blood pressure, all of which was fine. After this I convinced them I was well enough to drive home, and I made it home.
When I got home I started feeling rough again. Like I wanted to fall asleep, and like I wanted to be sick. My Mum came back from work and she stayed with me until my girlfriend came round so there was always someone with me. After about 20 minutes I was sick, (the painful type where you're just heaving and throwing up stomach acid because I'd had nothing to eat yet today), still didn't feel well and was sick again after about another hour. After that I went upstairs and layed in bed which did make me feel slightly better, and I wasn't sick any more. Drifted off to sleep now and then too, but kept waking up because my stomach was literally empty, but I didn't really feel up to eating anything. Eventually I had a few scraps of toast and 2 bit of pasta, (yes, just 2 bits).
I started to feel stronger the longer the day went on and eventually moved back downstairs to sit properly and watch a bit of TV. I felt hungry too so had a bag of crisps, then some cheese and dried bacon strips. Now I am feeling a lot better, just need some food in me which will be ready shortly, though I do have a banging headache and my face still stings!
What a day. Not many people go to the doctor's and leave with more injuries than they went in with. Anyway, here's the pictures: