Take supplements

What type of pain it is? Whether it is nagging pain or pricking pain or stabbing pain? You need to check your blood.

Chiropractic adjustment will help. Standing calf stretch Stand away from a wall and.put your fight foot behind you and be sure your toes are facing forward. Lean forward at the ankle while bending the right knee and keeping your heel on the ground. Hold this for 30 to 60 seconds. Repeat 10 times a twice a day. Downward dog yoga stretch Get down on all fours with your hands under your shoulders on the floor. Walk your hands forward slightly on the floor. Spread your fingers apart to allow for a broad base of support. Push your hips up toward the ceiling and tighten your abdominal muscles. Keep your heels on the ground and gently try and straighten your knees. Repeat 10 times a twice a day.

https://youtu.be/aSKlYezNCes

Too much sitting/lying down at a rime, laptop and mobile use leads to weakness and stiffness on your muscles.

Correct your sitting posture and Do some hand and leg stretches that will give you relief...

As you are a student it must be due to excessive writting and long sitting hours. During past month due to lockdown you must be doing overuse of your hand muscles.Youmust start doing some stretches and strengthening exercises of hand & leg muscles.

Generalised body pain could be Vit D deficiency related. Hard to do a blood test with current restriction. Usually vit D3 1000 IU could be taken off the counter but also ask a GP on practo online.

You have not mentioned proper history are you doing more of writings or standing. For better treatment need proper history and assessment of the pain.so as per your symptoms use pain relieving spray or ointment like volini gel or diclofenac gel. Use ice pack or hot water bag three times a day 10 min-15min. Start doing exercises for legs and hand. Stretching for hand and legs.