Sore hip after run

[Machrie1]

Hi guys, I was on wk 2 Run 2 which I managed but since then have developed a really sore left hip, the outside of it to be specific, feels sore just walking and when trying to stretch it. Not sure if it’s a ligament or what (IT band I read about?) Anyway, very frustratingly that’s about 10 days or so since my last run and obviously with the way of the world it was a good release from anxious feelings. It doesn’t affect my ability to cycle though so I’m still doing that. Anyway, any ideas what I’ve done and recovery advice would be much appreciated! Thanks