I have a hard bulge below my last rib on my right side that seems to flutter or vibrate after eating but not always. Is sometimes more noticeable when I am driving fast as I tend to move my seat further forward and contract my abs when driving this way... Is it gastric or muscular?????
Hello, One of the common cause of the fluttering bulge in the rib is thought to be due to activity and movement in the stomach and intestines, which lay directly beneath this area. I suggest doing an abdominal ultrasound for further evaluation. Hope I have answered your question. Let me know if I can assist you further.