Fighting with my husband Update

I have 3 kids. 8, 4 and 9 month old. Me and my husband both work, but lately he's been using him being sick as an excuse not to do anything. He has a slight fever of 101 and strep throat. He has been home from work. His legs aren't broken. How am I expected to clean, take care of the kids, and work while he stays in the room and sleeps. He can get up to take a bath, but he can't feed the baby or change a diaper? I've been tired and sick of everything. He's been sick for 2 days and hasn't even tried to at least clean. I was trying to change the baby's diaper and he asked me to bring him some Tylenol. I told him to get it himself and he's been shit help. He starts complaining that he's sick and Im like that doesn't mean you stop being a father. We start fighting. When I get mad I like to hit below the belt because I just get so upset. So I brought up a time when he was a horrible father. My husband used to be hooked on meth and when our oldest was a baby he had left her in a car because he was high. That was 7 years ago. I left him for a while after that and he got clean. He's been clean for 7 years. That's my husband's biggest regret and in the fight since I was mad I brought that up and said "Yeah you're such a good father. Remember when you left Audrey in a car because meth was more important!" After I said that he started crying and now he's ignoring me. I probably shouldn't have went that far but I'm tired and sick of him doing nothing while I have been doing everything!

Update: I took a minute to calm down. I understand that I shouldn't have acted that way or said that. I do trust my husband. I know he would never touch a drug again. I just said that to hurt him and I know it's wrong. I went to out room and apologized to him. He started crying again and told me he hates himself every day for leaving our daughter in that car and how she could have died and he will never forgive himself for that. I said I shouldn't have brought it up and he's changed so much in the last 7 years and I was sorry. I know he was sick but he was so upset and crying that I just hugged him. I do feel bad and I know I need to work on shit. I know he hates himself for that and I shouldn't have brought it up. I reassured him that he's a good father and got him the Tylenol. I understand why the comments are harsh. Thx for being real with me.