Over A Month of Fever

[AbelN]

I am 26 (Male)
I first had fever around the end of May, with no other symptoms (running nose or cough), this lasted for a few days and the was gone. After a span for 4 days i was caught up with fever again and this time also it was just fever and nothing else, consulted a doctor and was advised to take antibiotics.Did a course as advised for 7 Days, it became fine.During this period my average temp was 99 and the max was 101. After the course i became fine and started work again normally. then on the 9 of June i had fever again, this time it was 103 and yet again nothing but fever. ON the 11 of June i had Dry cough but not throat cough but more from the chest. On the 13 i had problems breathing as well and had to resort to my inhaler Levosalbutamol ( i do have asthma ). Visited the Doctor again and was asked for a lot get lot tests done . Haematology, Biochemisty(ERBA EM 200), Malaria Antigen, Widal, Mantoux, Urine Routine & Microscopic, Urine Culture,Chest Xray, CT Scan for chest, Ultrasound and a PFT.... al came normal. I was told by the doctor not to worry and that it may be due to some viral or bacterial infection thats has heightened my asthma again and will go in time through medication. The prescribed drugs were : Mega CV 1gm, Montair Fx, Ascoril D and Budamate 200 Transhaler.
Even thorugh the 7 day course i had breathing issues it was not in check, had low grade fever of 99 at some given time of the day but mostly 98.4 and in the morning after getting it was around 97.2.
After the course was finished the low grade fever continued and the breathing issues were there too.
Now from the past few days i have had fever again during the evening which goes up to 100.8  on all three occasion, and i m really getting worried about my health.
There has been no proper diagnose for my condition till now and i m starting to get worried.
Please Help