I am extremely worried. The first one I have had for months and quite honestly forgot about. My partner checked it and said it looked as though I had been bitten. However, I have been suffering with severe neck, shoulder and collar bone pain for a week or so. My GP thinks its all stress related (I have been and still am under a huge amount) but having had some blood tests done the results have revealed 'thyroid' which I have to speak to him about next week. I have now noticed a second 'red bump' at the back of my neck just below the hairline and going frantic. For background I have a 16 month old grandson who has broken his arm and has it in plaster who I have been carrying quite a bit (holding him on the right side - collar bone, shoulder pain started in left). I then developed over the past few days RSI in the left hand and rested it but typed one handed which I suspect is why the shoulder pain has now started in my right shoulder also (clutching at straws here). I have also today coloured my hair which might explain the sudden appearance of this 'bump' its small, longish and to all intents and purpose one would think I had been bitten by a mossie. I am so worried. What could it be please?