Abdominal lumps, nerve shocks, numbness and back pain

M32 308lbs 5’9” diabetic

I am at my wits end trying to figure out what I have. For the past year I have been having hard painful lumps that I can feel under my skin in my abdominal area. Sometimes on the left side, sometimes on the right. I’d say they measure about half of an inch in diameter. They last anywhere from a few hours up to 3-4 days then go away only to come back again. At first it was only one or two at a time however in the past 2 months I’ve been getting more and more. At the moment I can count at least 7. They are under the skin so they are not visible, only felt when pressing around my belly. Since they have started to multiply I’ve had huge increase in back pain, testicular pain, and pain right under my left arm pit.

On top of this, for almost year I have been having all kinds of neurological issues such as body and face numbness, “electric” shocks throughout my body, migraines and dizziness.

I have had multiple trips to the ER where they’ll do blood tests such as liver function panels, lipase, and blood cell counts as well as urine tests. All coming back normal.

I have discussed this with my doctor. He didn’t seem too concerned about it. Said it may be hardened nerve endings but didn’t give me a cause or diagnosis. He prescribed me nortriptyline that I started taking, but after 3 days (one 10mg pill per day) my heart rate was skyrocketing so I stoped.

It may sound dramatic but it honestly feels like my nervous system is attacking me. Any insight would be helpful.