I as diagnosed with having costochondritis a couple months ago. I've been having the symptoms for a while. I was prescribed voltaren gel (ibuprofen in gel form) . I don't like to use it every day since it isn't good to do that long term. I have started working out my chest muscles again and my chest is killing today. I'm currently using an ice pack . It really sets off my anxiety because it hurts to breathe and I'll think I'm not breathing efficiently. Does anyone else have this issue?