Pardon the "anatomy speak." It’s just cleaner language. But your help is greatly appreciated.

Hi, this is a really weird question, but sometimes I press my stomach (a few inches under my belly button on the left) and feel a sort of long mass thingy. It’s not on the right, and I think I’ve noticed it for a very long time. But it’s not on the right side so I’m kinda worried. Aaaanyway, I was wondering if this could be my colon or maybe another part of my anatomy??
I’m pretty thin, but not really thin. Hmmm…I was just worried cuz it’s not on my right side.

Does the lining of arteries have anything that plaque can grab a foothold on and begin building up? I don’t believe these stories about people having gunk built up in their bowels for several years. I’m not familiar with anatomy, but I think the bowels have a mucus lining that nothing can stick to. Anyone know what the difference is?

D) The skin is___ to the bones? E) The radius is ___ to the humerus? F) The esophagus is ___ to the trachea? G) The bladder is ___ to the ascending colon? H) The sternum is ___ to the descending colon?

The answers are Superior, Inferior, Anterior, Posterior, Medial, Lateral, Proximal, Distal, and Deep.

This is for Anatomy.

My Urologist is saying I have Bladder Reflux (BR) and I need an Inter-Stim Pacemaker. After doing research I read that BR does not usually show any pain or outward symptoms but yet this Physician is in a hurry to default to this surgery and device. I am a survivor of Infantile Neuroblastoma (Cancer) and have a severely atrophied pelvis as a result of the cancer treatment. Recently I was hospitalized for severe abdominal pain (bladder area) and no urination and the "diagnosis" was Bladder Reflux which I say is BS. My take is it was either the ureter being pinched by intestines/colon in the smaller than normal pelvic area OR a muscle issue with pelvic floor or hip flexor (sp) muscles. ANY help or advice would be welcomed. I am definitely a unique case and I feel the doctors are ignoring my physical anatomy differences due to the cancer and just defaulting to the "easy" way out for them which more than likely isn’t the TRUE cause. H E L P, please.