Cold-like symptoms after exercise.

[Alatom]

Hi,
For 4-5 years I have been having these problems and it escalated the latest year or so. It goes like this:
-I exercise (gym or running) moderately (not hard) or even only walk a few miles.
-Roughly 30-40 hours later I feel like having fever (I don't have fever though, I've checked). This feeling disappears after a few hours.
-I start getting a swollen throat (pharynx).
-I get a runny nose and start sneezing.
-I get wounds or blisters on my tongue after a few more days. It is like red areas on several places on the tongue.
These wounds/blisters and the other symptoms remain for several days.

The swollen throat and the runny nose is more or less exactly like when a cold is starting. Difference in this case is that the symptoms do not get worse if I rest. It does not transform to a "real cold".

If I would try to exercise again in this state my body does not respond, I get tired and have no energy.
Really feels that something is "going on" in my body.

If I rest the symptoms will go away in 4-5 days until I exercise again. The wounds on the tongue will stay a bit longer. Pictures of the "wounds":
http://i1380.photobucket.com/albums/ah191/bjornw78/9_zpsclyhm2i6.png
http://i1380.photobucket.com/albums/ah191/bjornw78/12_zpsajbftanx.png
http://i1380.photobucket.com/albums/ah191/bjornw78/8_zpschvkop8i.png
http://i1380.photobucket.com/albums/ah191/bjornw78/11_zpslzj2fo6n.png
http://i1380.photobucket.com/albums/ah191/bjornw78/10_zpsre1vaew7.png
http://i1380.photobucket.com/albums/ah191/bjornw78/2_zpseufusbqj.png
http://i1380.photobucket.com/albums/ah191/bjornw78/7_zpszg4iq6t0.png
http://i1380.photobucket.com/albums/ah191/bjornw78/3_zpsv7hkaf8d.png
http://i1380.photobucket.com/albums/ah191/bjornw78/4_zpszjximaoh.png

I have not been able to get much help at my local hospital. They have taken tests for bacteria and viruses and found nothing. Immunological tests showed nothing.
During some periods (some months now and then) I have been able to exercise withour any issues (8-10 hours per week).

Would be really grateful for any help.

Best regards Bjorn