Severe Fatigue and feverish feeling.

I had mild dry cough two weeks back for which I consulted a physician near by. Dr said no need of rtpcr as I din't have fever then...I took cough syrup and anti biotics for five days and cough is gone by one week...after antibiotics(5 days today) my eyes are burning mostly from afternoon and oral temperature on digital thermometer is 98.3-98.9...since yesterday I have severe Fatigue and feeling sleepy always...I also used to workout well for last two weeks  ..my bp is 117/76, pulse is 74-83 and Spo2 is always 98...i have not quarentined myself and all 5 others at home are perfectly fine with no symptoms...it's been 16 days since start of dry cough and 5 days since eye burning and low fever..and last 16 days everyone at home are fine..is it because of dehydration or antibiotics I don't know ..I have good smell and taste and can do all breathing techniques well..can hold my breath for over 45 second without any pain... however I am really stressed out due to pandemic situation outside