HI Rose
I was skiing over half-term (last week) Was HM fit before I went; no problems whiel there altho' burning thighs from time to time trying to keep up with my 6 year old!
Back to running this week and it is really hard after only 16 days off and 6 of them on skis. My thighs are soooo tired I have so far managed 4.5 miles on Tuesday, 5 miles yesterday am, both at just over 10mm and today did a 30 min 5K but was knackered. I was aiming for a 2 hour Hm just b4 I went (it was cancelled) so I think I am just claiming tired legs and hopefully your hips are just a similar issue.
Hope things have improved now
Take care
FL