some days are good running days, others are just plain crappy. good running days are the days when i feel like i can run forever and ever...my breathing is good, my body feels good, nothing is hurting. crappy running days i run 2 miles and feel like i'm gonna pass out. either my hip feels achy (which has been an ongoing problem recently, especially when i walk, but now sometimes when i run too...) or i feel like i'm suffocating (it could just be bad breathing techniques, but i like to think it's caused by too many ppl in the gym breathing up all the oxygen). :( and can someone please tell me why i get that awful cramp in my rib? the kind that feels like someone is stabbing you over and over in your rib cage? how do i avoid that? i do nothing differently on those days that i cramp up, so i can't figure out what i'm doing (or not doing) to cause this pain. sucks.