Hi - I have to say from the outset that I'm not especially good at suffering and am a v pathetic patient, but..
Over the last 5/6 weeks I have had a series of annoying illnesses and when one clears up another things begins 
Started with a tickly, non productive cough.
Then runny nose/cold.
Then developed a sore throat.
When sore throat went, the cough came back but this time a chesty cough.
Then started getting a very dizzy head.
After that exhaustion set in - I would come home from work and just sleep.
Next delight was a crazy rash on scalp, elbows and underneath breast.
AND today I was lying in bed before I got up feeling a bit ill, got up and realised I had the worst cast of diarrhea {sp} that I have ever had - running out of me like water - yuk 
Vomiting started after runs cleared up and now I am l am wondering what I can do to alleviate headache?
I haven't been able to eat or drink today - dh is working late and no one around as family live 2 hours drive away.
The poor dog needed out earlier and I had to crawl on my hands and knees to the door to open it.
I just feel incredibly sorry for myself and really ill.
I am a teacher so I dragged myself in today and had to leave again - I have a potentially difficult meeting with a parent tomorrow so am worried that I won't make that.
Also worried what HT will think about me taking time off as I am trying really hard to make a good impression and secure a permanent contract.
Sorry this is so long and rambling - please help if you can.