Re: Such think as a mild flu?
If I were you I'd now watch for a rash on or near the site of the pain/burning.
It could be shingles which can start with a flulike illness but without the very high fever. The fact that your skin is sensitive to touch is what is really leaning me in this direction. Have you had chickenpox in the past? I ask because you had to have had it had some point in life in order to get shingles as it comes from the same virus - it lays dormant in your body and can reactivate at any time especially under times of stress or trauma to the body.
Shingles can be very painful. If you do develop a rash (blistery) and it is shingles the doc can give you medication (antiviral) to try to shorten the duration of the illness but you have to get the meds within 24-48 hours of the start of the rash for it to be effective.
I wish you luck!