Why is it so painful to exercise for 3 minutes?

Question

I'm skinny, weigh 120. I used to exercise 30 minutes a day but recently can only go for 3. After every 3 minute exercise , everything hurts and I feel like I'm going to  die. All the bones in my body feel like they're going to fall apart and turn to dust. I don't know why I feel bad so much now, I've been exercising 30 min a day for years, I can  hardly do 10 push ups now.

Answer 1

No way to know, see a doctor.

Answer 2

No one here knows enough about you to explain that. Even someone very out of shape should be able to manage 3 mins of exercise without feeling they are going to die. See a doctor. Your situation sounds extreme.