Lumps appearing under skin

For the last 2 weeks ive had these raised red lumps appearing on my thighs and arms. One will come up feels tender to touch then after 2 or 3 days it will it bruise then disappear. I dont feel unwell and have no other symptoms. Ive been to the doctor he done some blood tests said nothing was abnormal

It could be caused by the heat, if your GP has checked try not to worry 

Do you shave your thighs and arms by chance? Unless I am understanding wrong it sounds a little bit like raiser bumps.

Its pretty cold here at the moment dont think its the heat thanks for the reply

No i dont shave in these areas. They vary in size from a 5 cent piece to a 20 cent piece got the doctor a bit puzzled at the moment

Do they itch?

No just tender to touch

I certainly would see your primary health carer