Hi @john54326, this is a good question to ask your doctor.

Here is some general guidance from Mayo Clinic:
- Mayo Clinic Q and A: Is Strength Training Safe for Teens? https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-q-and-a-is-strength-training-safe-for-teens/

Both strength training and cardio exercise are good things for one's health. Given your history as a baby, it would be best to check with your doctor if there are any specific exercises you should avoid or precautions you should take.