Running

Just wondering if anyone has any advice. I’ve been doing most of my running on a treadmill due to the winter. Finally was able to get a nice run outside yesterday and i definitely felt more sore in my ankles/tib area. Once I hit mile 3 it’s almost like those muscles are so “pumped” I have to stop and shake it out to feel comfortable again. I’m assuming more outdoor running would fix this problem?

Question number 2, I’m sitting at 215-220 pretty comfortably. I don’t eat like shit and regularly eat the same food everyday. Would dropping weight down to 205/200 help running that significantly? I’ve never cut before and would hate to not fuel myself enough for training because I’m trying to lose weight.