A week ago had an episode that felt like a heart attack which left me with tingles pronounced on the left side of my body and a weird weakness, but not debilitating in any way. panic attack, vitamin deficiency or smth else? no insurance for now so?

It's difficult to give you an accurate advice. You should not worry much at this time; however, if symptoms recur with the same pattern, you should see a neurologist by then.

Through a local clinic or public hospital see a neurologist. It could be anything, a stroke, a heart attack, a panic attack. You need a good blood workup and a computer psychological test like the MMPI-2.