I'm 26 year old male, normal BMI. There is some sticky feeling near left shoulder blade (upper left back) near spine to be precise. Something sticky, something stuck in the back feeling which can be felt when I bend. I am not having any pain or no lump can be seen in the region from outside. This issue persists since more than a year but i feel it more often nowadays (before i felt it only when i bent down). I am confused whether it's a tumor inside or lipoma (which i have on hands). I am aslo on high bp tabs, this is causing me anxiety also. Is it posture issue as I have spent most of time in sleeping flat on back position since past 5-6 year?