I get sharp electric shock like pain all over my body when I stay in hot weather. Why?

Hi doctor,

I have a problem with my body for a year now. I have a sudden electric shock that radiates to the other body parts or a needle poking my skin or sharp pain. It usually happens when I am in hot weather or when drinking hot water or doing exercise. My body becomes very hot and my ears get hot after having the pain.

One of my body parts will feel this electric pain. I do not know the specific spot. It can happen in my legs, my hands, my shoulders, my head, and maybe in my back. The pain will not stop until I use a cold to stop the pain. I use an ice pack regularly or I move to a colder place to get relief from the pain.

The pain does not happen when I am in a cold place. Sometimes sneezing or feeling anxious too triggers it. Kindly answer my questions and suggest some painkillers. Can I have a painkiller to stop the pain? Does medication help me to have relief? Do I need any lifestyle changes? I started to have this problem after the start of the pandemic.

The sickness came when I started to study in my home and when I was not allowed to move outside. I suspect that these changes cause this problem. During the lockdown, I was sitting on the bed for a whole day without having sunlight or exercise. Do I need any lifestyle changes?