The day before pre season, I was running and I noticed that the inside of my shin bone (tibia) kinda hurt or was twinging during the run. I did some googling and thought it might be posterior tibia tendonitis (PTT). The pain was usually only a 1 or 2, and half the time I didn't feel it - sometimes it flared up but I was able to forget about it, and now here I am - I've run in several races, and been training every week. I guess I've sort of gotten used to it (and as I said it doesn't really hurt that bad; it's been very mild and pretty manageable), but then it started hurting a on my run yesterday to the point where my stride felt weird and that I felt weird walking and starting up again every time we stopped. Now, I think I need to address it.
I'm actually not sure it's PTT and am really worried it's a stress fracture. The pain is actually a few inches higher up on my shin (I can't remember if I started feeling pain lower). Bending down to squat/lean forward/and tie my shoe hurts it. Foam rolling the inside of my shin on this area hurts so bad. When I jump off of things and land on it, it hurts. There is sort of an area that hurts when I press down (of course, now as I write this, I can't feel it as much). It doesn't really hurt that much to walk on (unless I'm walking after it flared up during a run).
Up until yesterday's run, it hadn't gotten worse, but it hadn't gone away. I was able to run with it barely or not at all bothering me. I think what really is the red flag is how much pain I have been in trying to foam roll it.
Lastly, should I tell my coach that I've been running through this for 2 months? I think I have to be straightforward and explain that it wasn't bothering me much (I often forget about it). I really want to race in our race this weekend, and I don't know how it's going to feel today. But at the same time, I don't want to do permanent damage. Please advise. Thanks.