Hi im really worried,

I have had a lump on my chest which I went and had ultrasound on, they told me its just a simple lipoma, 

I noted to them that it hurt considerably but just left it considering they're the experts, the lump is only about 2cm big and its really tender but the worrying thing is my health has really deteriorated now my bowel don't open properly and the whole side of my chest around that lump really hurts and its really sore, granted the lump itself hasn't got any noticeably bigger but the area immediately around it feels more tender and sore and it feels like its effecting deeper tissue than what they say a simple lipoma should, i know this isnt a diagnosistic site in any form but im just wondering if anyone else has had similar experience I apologise if I'm breaking any rules and will remove my post if so, I am loosing weight and the dr seems concerned but my bloods seems to be fine, I am constantly fatigued, my hip hurts to where I can no longer walk onit and I just think that more os going on than just simple lipoma. The lump in is about 3 inches below my pectorial on left side in the middle of my left chest wall. It feels though the are has turned into jelly around it and nerves have been damaged and it goes deep and is now affecting my whole abdomen, but without noticeable large mass.

Thanks and sorry if I'm posting wrong content just very concerned.