worried

I had a 7k race saturday and something snapped in my right knee in the last mile and I had to stop and sit on the side of the road. Help came quickly but I felt like such a failure.   My running times have been so fast and I thought I would do really well in this race. But the pain kept my mind off of it for a while.  I went to an ortho urgent care and apparently it is just a bad attack of arthritis (I didn't know I had arthritis!).  I had x rays and physical therapy that day, take home exercises and pain meds.  I have no swelling so this means I haven't torn anything.  The reason I am worried is because I don't know how long I won't be able to run and I don't think my mental state would be able to cope with that.  I did work out my upper body today and did sit ups - but i was unable to box b/c I still cannot bear a lot of weight on the knee.  I am using crutches for now and go back on wednesday for more therapy and to see the ortho dr again.  I go to my therapist tomorrow and I am looking foward to that as always.  I hope I am doing well.  I will have to tell her about my fears of not being able to run and I have a marathon in april that I have been training for (walking).  It's all up in the air right now - that's why I am worried.   Going to bed now and hopefully sleep will take my mind of it.