I do have a stuffy nose year round. I get quite a few sinus headaches but not as many as before I had my deviated septum fixed. So at least things aren't as bad as they were. I don't have the typical allergy symptoms such as sneezing and watery eyes. But I do get sticky eyes every now and then and just take an antihistimine. I also had a really bad case of heartburn about 5 minutes into the ride as well that lasted for about 15 miles. I didn't think allergies could induce such a violent coughing attack. I'm thinking it might be asthma because I just can seem to keep up lately. My lungs always give out before my legs...and after two years of riding (almost 3000 miles this year) regularly I don't think it is a fitness issue...especially since my performance is degrading. My heart rate is higher than normal even on the flat stretches. Heck...I don't know what's going on!