You came here angry with the world because walking 20 minutes a day doesn't make a dent in the fat and running hurts. Well, here's the response.
Of course running hurts if you are overweight. Your bones and tendons are not made to support that much weight and neither are your muscles if you have been neglecting them. Bodies get neglected, that's what happens to them when they get old. If you really love running like you said, then drop some weight and start running. Do, don't cry. Walk more. Use nordic walking poles. Swimming is an excellent low-impact sport and so is water running. Walking 20 minutes with decent pace burns around 500-600kcal for someone weighting 120kg. That's a half a can of Pringles. You need to be really careful with what you eat if you want to drop weight with just that.
Of course running hurts if you are overweight. Your bones and tendons are not made to support that much weight and neither are your muscles if you have been neglecting them. Bodies get neglected, that's what happens to them when they get old. If you really love running like you said, then drop some weight and start running. Do, don't cry. Walk more. Use nordic walking poles. Swimming is an excellent low-impact sport and so is water running. Walking 20 minutes with decent pace burns around 500-600kcal for someone weighting 120kg. That's a half a can of Pringles. You need to be really careful with what you eat if you want to drop weight with just that.