Is it normal to find exercise very painful?

talk to a doctor

Sounds like someones not use to exercise .

Yeah the best advice I can give is to embrace the pain it's hard at first but keep it up and you'll need it and feel better (source) own personal experiance.

At the age of 18? Not normal. You might be overdoing it, but at the same time, working out hurts. Push through it.

You sound like you have a bad back problem. Get it checked out and work on fixing it.

If it's low back pain it's probably sciatica or disk protrusion on a nerve. Go to a good chiropractor

you might be over-exerting yourself. start very very gradually, even if people laugh at you. Then slowly increase the weights and intensity.

that's what I did. I started bench pressing 30lbs, then worked up to over 220 lbs in a few months. I was extremely built by that point.

I've neglected my body-because of my career, but I plan to get back into fighting form when I can make the time.

anyways for you-some soreness is normal, but give your body time to rest and rebuild.

if you're in extreme pain, then you're doing it wrong. See a doctor and workout at a moderate pace, don't be stupid.

It used to cause me multitudes of pain and discomfort, Then I found out it some kind of collagen problem. See a doctor.

Normal for someone who is excruciatingly overweight. As you clearly are.