Not made for walking today!

Actually it is my right foot which is the problem, not my boots!  Charity walk today for Manorlands, a Sue Ryder Hospice.  5, 10 or 16 miles.  The first bit was as is usual around here - a hill. It was quite close and warm, and I got too hot immediately.  Having done the Jersey walks, and having bound up my bad foot with compression bandage I thought I should be okay.  After about 4 miles I realised my foot was not going to hold up so veered off and finished the 5 miler.  At least I got a certificate this time.  Hey ho - I have an appointment with the doctor on Tuesday, so am hoping he can find a solution!