I have mild mvp can it be stronger at any point what should i be careful of?

Yes: Mitral valve prolapse can worsen -leak more over time. Regular followup ad echocardiograms are useful to follow. Your blood counts also need careful followup for thalassemia you mentioned.

NO: Lot of people have this condition. You don't need to worry.

It can progress over: Time and periodically monitored with echocardiogram ....More frequently if symptoms like shortness of breath occur.