ok, this explains it all. went to see doctor again. so i have a cyst infection in my rear. the infection causes a low grade fever which explains why the last 3 weeks i have been feeling weak and muscle sore even though it was not a full blown flu.
have been on 2 different antibiotics last 3 weeks, so am another one now. a second generation one according to the doctor. if it still does not recover, an operation to drain it will be required.
at least i see myself getting back to being healthy for exercise again and not feel weak on and off the last 3 weeks.
finger crossed no ops.