I’m just starting week 3 of my c25k but I’ve got this really dull ache behind my left knee which has put a bit of a dampener on things. It doesn’t hurt but when I sit down it’s uncomfortable and feels a bit like a pulling sensation all the way to my very lower back but only the left hand side. I have to get up and move, driving is uncomfortable too unless I take a painkiller. It’s hard to describe but walking & running takes the sensation away which is confusing but I don’t want to make it worse! Hoping it’s not sciatica or a nerve, anyone felt this when starting up again?
Hearing you with the joys of being 40!