<s>[INST] in the morning I have a sharp pain in the center of my palm, left hand it feels like I have a splinter crossing the lifeline of my palm, when I make a fist or grab something. This pain dissipates as time goes by, and reappears next morning. Had ultra sound, found nothing. Should I be concerned. My doctor says to leave it alone and see where it leads. [/INST] Hi Hope this message finds you in good health.I have gone through your complaints and understand your concern.U seem to have some sort of soft tissue inflammation in muscle layer of palm that causes stiffness.Get an Mri done to find out the cause.Nothing to worry about.     I hope your question has been answered.If you have any follow-up queries,feel free to consult me anytime.Thanks,Take care,God bless. </s>