Hi there and thank you for the question. I am a Registered Nurse and will be happy to help you today.
it sounds as though what you have may be something different
your immune system was probably run down from your sickness that you had earlier and now you could have picked up somethingnew
Well I was sick the last week of Feb. it got better, went on a cruise and got another cold which was the one I explained and it got better and now this is the only problem i have had for a week
you should let your Dr do a chest xray and blood work...
I think that is a good idea
the blood work will show if your white count is high or low (viral or bacterial)