I was a bit worried about this as a few people were on here saying how awful it was and it was such a step up in terms of the length of time running.
Dare I say it? I think I enjoyed the 5 min runs better? I was able to get into more of a flow, I think. I also tried some distraction techniques. Last night on the treadmill at the gym there is a frosted window which overlooks the village main street. So I amused myself (in the absence of anything else) by trying to guess the colour of the next car to drive past. It made me smile when I guessed blue at one point and the next thing to go past was a cyclist with a bright blue top on. I'm a simple soul!
I think my base fitness must be good because it's not the breathing I'm having trouble with but more that my legs/feet hurt a bit.