Another obstacle on the road to success

I haven't been as active as I should. I have been dealing with heart related issues since February. I have had two stress tests and found out that the top of the heart is deteriorating. So in four weeks I go in for a heart Cath to see what the damage is. I have been told no exercise except for walking 5 minutes a day. Since last August I have lost 54 pounds while working out with a trainer twice a week. But now I fear that I might gain some of that back. I hope whoever reads this has an awesome week.