Really slipping this week! Foot problems - can't seem to find a decent pair of trainers. Old ones are Asics GT-2000 (5) - but 6 (which I bought) and 7 not as comfortable, so still using 5. So I just got new Nike Air Pegusus, which I used to have, but tendons really started hurting after 5km. Now looking at Mizuno Wave Rider but can't seem to find my size (48). Suggestions welcome!