What Causes Small Lumps All Over The Body While On Metformin?

I Have A LOT OF HEALTH ISSUES !!!!BUT I HAVE RECENTLY BEEN DIAGNOSED WITH DIABETES & Lost 40lbs.in a 3 month period but Now I m finding lumps small,first started in my tattoo??? Then inside My calf small at first now larger !!Also started on My right & left arm ????It seems it s along my bones ?? Could it be from the metphormine ???? I had a NP look at the fist few,couldnt find it anywhere On Her skin problems charts ??? Can you help Me I m So Scared I m 53 years old ,Still I Don t know why,now I m getting more ????I have ,High blood pressure,anxiety,CFS , Fibromyalgia,Msk chronic kidney stone producer, floating kidneys, Hypothyroid,Alergies,Asthma,Hayfever,Still overweight ect.. allergic to alot of antibiotics,penicillin cardiac arrest/ steroids codone !!I am on 24 hr.morphine plus have 30 it s of short acting due to the amount of stones 24 yrs well over 3000!! Make 5 different stones !!!2 Mayo Clinic caught by accident during tests !!!! So also on aprozalam,levothyroxine,also just started an cholesterol med., Allegra,rescue inhaler, Epi pen,2 shots for allergies every other 2 wks. Pearls for cough & nasal spray ,cyclobenzaprine,benedryl, hctz for arena ,constipation,ibs clearlax I m so upset I know I take around 19 scripts! Also more health issues,but Very WORRIED ABOUT THESE BUMPS COULD THEY BE CALCIUM DEPSITS ! Just Had blood work cbc,tsh,cholesterol ,Now says numbers are good but low sodium because of massive amounts of liquids ! Low potassium so every Tuesday I have 8 hrs.of iV potassium infusion s!!!!but the bumps are coming Out more everyday ??? Surgeries laser,lythotripsiys,retrogrades due to high allergic reaction to dye ,gallbladder removed stones,hystorectomy endometriosis & enlarged,tipped Uterus ! Have donated my body to science Due to All the Oddities,I have to medicines ,and My MSI & floating kidneys!!! I am in alot of pain daily but have been taken off 5 scripts 2 other pain meds ??!!! We live in a small farming community,Very hard to get good Drs. Or Drs.at All ! Hence I visit University of Iowa Hospital s & Clinics or Mayo Clinic but they are over 100 miles+ away !!! Have Any of You Ever heard of these bumps???? My tattoos are not new but the lumps are, Went to dermatologist & she said she had no idea about tattoos??!!! In this day & age ??!!!! So can Any of You HELP ME ??!!!