hills

Yesterday I went on my second run with the NVRC; hills. Although I was still having some pain in the upper ankle/lower calf, I decided to getting things moving would possibly be a good idea. The plan was the meet up with the group at the bottom of the hill we would be doing repeats on. After a few emails I felt relatively certain where I was supposed to be and when. I arrived 20 minutes early and did some jogging on the Toftrees trail to warm up. After around 18 minutes when I wasn't seeing anyone I ran up the part of the trail I haven't been on before. It popped out after about a quarter mile at the entrance to Sunset Park. This is the "hill" for repeats I guessed. I jogged back down, glad at least to know how long it was (took 2:30 minutes for me to jog up). I then started wondering where everyone was and ran up the other hill toward where I had parked. In retrospect this extra up and down, up and down was not the smartest. Had I known what we would be doing I might have saved some energy. So, eventually everyone arrives (I think about 8 people). Tara tells us where the start of the hill is (grease spot on trail). I don't hear anything from her about how many repeats we'll be doing. For some reason I had in my head that it would be 6 or 8. Then everyone flies, flies up the hill. I trudge, at the back of the pack. After about a minute my lungs always feel like they are going to explode. I'm not a huge fan of that feeling. After the third repeat (my fourth time up this hill), Marty informs me that 4 is the magic number for today. At this point I feel a little better about how fast everyone was going and realized I perhaps could have pushed even harder. The group then departed back toward campus, and I back toward my car parked in the other direction. A very nice group. Not surprisingly I had one of those exertion headaches by around 4pm, but it was manageable. I wasn't too nauseous or in too much pain; just out of sorts with some discomfort. Feet hurt a lot for the rest of the day. Don't know whether to get worried about that or not. For now, I'll withhold judgment.

Does anyone know how asthma is diagnosed? What sorts of tests (if any) are involved?