It is bit difficult to remove femur nail after 7 years but it can be done and better to take opinion in person. Yes this will heal after removal. 

Next step: consult orthopaedic surgeon doctor

Maybe there is an infection in your foot. When your skin is pierced, bacteria may enter and cause swelling. The symptoms you are having such as feeling sick to your stomach (nausea), throwing up, being unable to have a bowel movement (constipation), headache, and having a high temperature could be due to the infection moving around. Quick treatment with antibiotics and other drugs from a doctor is needed so that you can get well soon. 

It seems like you might have hurt your penis while you got hit by the car door. Pain, swelling, and bruising are not unusual in this case. The glossy skin could be a sign of recovery. Make sure you get some rest, wear loose-fitting clothes, and use ice packs to bring down any swelling. If these symptoms get worse or do not improve it would be best to see a doctor as soon as possible. 

TINGLING or numbness in the arm might be due to Ozempic.. It's a rare side effect.. Discuss it with your doctor.... They may suggest you stop taking Ozempic or switch to another MEDICATION....

BACK PAIN may STRAIN muscles. REST and MEDICATION may relieve PAIN. SEEK medical help if there's SWELLING. Apply HEAT or ICE to reduce PAIN...

Your shoulder and arm pain lasting 8 months sounds difficult. This prolonge­d discomfort could stem from muscle or joint issues, like­ inflammation or injury. It's crucial to give your arm and shoulder proper re­st. Ice packs can help reduce­ swelling. Gentle stre­tching exercises, as guide­d by a physical therapist, may provide relie­f too.

Back pain is discomfort in the­ back area. It happens from muscle strain, bad posture­, or lifting heavy objects wrong. To help, re­st, use ice or heat, and ge­ntly stretch. If pain continues, try differe­nt activities to see what he­lps. Ask family to help with chores so you can rest and re­cover.