I'm sorry to hear you're experiencing these symptoms. Joint pain, back pain, leg swelling, and a sensation like an electric current in your hand could be related to several conditions, including nerve compression (such as sciatica or carpal tunnel syndrome), vascular issues causing leg swelling, or inflammatory joint diseases.

• The electric current sensation in your hand might suggest nerve irritation or compression.
• Swelling in the leg could indicate circulation problems like deep vein thrombosis or inflammation.
• Joint and back pain together may point to musculoskeletal or inflammatory conditions.

It is important to see a rheumatologist or an orthopedic specialist promptly for a thorough evaluation, including physical examination and possibly imaging or nerve studies, to determine the exact cause and appropriate treatment. If the leg swelling is sudden, painful, or accompanied by redness and warmth, seek emergency care immediately.To narrow down potential causes, we will need some more information.To help me understand what might be causing your joint pain, back pain, leg swelling, and electric current sensation in your hand, could you please share your age and gender?