Rear Main Seal leak

From what i understand he gets around good and works hard. My wife and i used to hang out with Dan and his wife at Garlits Mopar show every year back when he would attend. He ate terrible and didn’t take the diabetes and sleep apnea serious. Before the divorce. I heard she cleaned him out.
I take a metformin pill in the morning and in the evening. I don't eat exactly how I should but I definitely lay off of the sweets. Carbs is what I have a hard time with because I absolutely love potatoes..