Runner Shiv

Hey all, Thank you for all the advice and encouragement! I started looking up while and run and tried to better my posture which has helped a lot and has gotten me to run over 2 miles for the first time in my life!! Woo

Hello All - I have been on week 6 day 2 for about a week now. I have for the first time in my life ran a full mile without stopping which was so soo exciting. However now I am getting this weird pain in my right shoulder/chest area (not the heart side). I have a feeling it has to do with either my stamina or posture because it happens right around mile 0.75-1.2. I am a 24 year old girl (around 240lb) that was never really been a runner. I haven't come across this weird/stabbing pain until recently (at the end of week 5). Any advice or similar experience is helpful! Thanks!