is daily exercise with no prior exercise experience safe?

hi, i was recently recommended by my doctor to exercise everyday for 2 weeks for reasons i wont get into. ive done the daily exercise for 2 days now and i am REALLY sore. an everything hurts no matter what i do level of sore. ive seen people say that exercising when in pain puts you at higher risk for injury and that jumping straight into daily exercise is a bad idea, but this is doctor recommended so... maybe its fine? i dont know. should i stick with this plan or is this dangerous?