Talk to Internal Medicine on Multiple Health Issues

Hello Doctor, I’m 17 years old and have been facing multiple issues for the past few months:

Lower back pain radiating to the right leg (suspected sciatica)

Leg weakness while standing/walking

Severe ear pain with burning, worsened by pressure/sounds

Sudden shortness of breath, chest pain, neck stiffness, leg weakness, blackout-like feeling, followed by headache, anxiety, and breathlessness

Tiredness, body pain, and weakness despite rest

Recently fell from stairs; foot pain healed in a few days

Ongoing stomach pain; ultrasound clear but acidity present

Reports:

MRI: Mild disc bulges, no nerve compression

Blood tests: Low hemoglobin, uric acid, Vitamin D & B12 deficiencies

I need advice on:

Are these symptoms due to deficiencies or something else?

Any further tests or treatment needed?

Recommended diet, supplements, and precautions.

Thanks