I have never had this problem personally but know of ppl who have. Anyway I doubt it's going to cause any long term or delayed problems in the future. So I would suggest to man up! Seriously though perhaps you should try stretching more often specifically before, during, and after you train chest. Perhaps look into Yoga as this has helped a friend of mine with the same problem. Also you may want to take some time off, or perhaps change your training style. Use a slower tempo, or try a different exercise.