Rash

Week 6 after surgery 

I started going to work for no more than 4 hrs / day   Felling very tired after that 

Had some bloating for a couple of days with some discomfort and diarrhea ( 3 days). I visit my Dr and he told me it was lack of physical exercise 

Last 3 days

Severe Muscle weakness that last 2 days 

Rash on my neck and left wrist

Swollen neck lymph node , right side for the last 2 days. Minor pain

What should I do?  Anxiety?