Feeling sick

It has been four days now since I did exercise. My last exercise was Standing Calf Raises. I did around 20 reps since then I have been feeling a little sick. I hurt my left food and I was in pain the entire day. At the next day I had fever over 37.5 Celsius. My right leg was all red and swallowed (I have chronic venous insufficiency). Today I feel a little better but couldn’t make any exercise. I will try tomorrow.