Well, if he refuses to believe you have a medical condition and you don't want to kick him out as a direct consequence of being a prick, the only useful suggestions I can make are;
Buy clothes that don't need ironing for the times when he's being more of a prick than usual.
If that's not possible because of work rules on clothing, drop them off at the launderette for a service wash & iron on the way home from work on Friday.
But your main problem isn't shirts, it isn't what is going on your head, it's that you are married to an utter cunt who doesn't believe you have a medical condition.
I had one of those. Seems that I could make blood tests display severe inflammation, joints swell up and deform and my skin overproduce through the power of my mind alone. I willed these things into existence to hide the fact I was a lazy abuser who had been called out (by him) as obviously having Munchausen's, apparently.
They bring nothing good into your life. They suck it out, quite frankly. The best thing he did was leave.
I managed. Not as well as if I'd had more money (so I could have paid for a cleaner/ironing service/etc, because I'd do that in a heartbeat), but the DC were old enough to learn how to sort and load the washing machine, the dishwasher, push the vacuum cleaner around, do essential ironing or set the board up for me in front of the settee so I could do it sitting down, ding dinners went on the online order so they could do themselves something if I genuinely couldn't move.
Now have a DP who never doubted me - it was 3 years before he saw what it was actually like to have a fullblown arthritis flare (I woke up one morning with hands like balloons and couldn't even hold a cup, felt like I'd been hit by a bus and reversed over repeatedly and ended up having lots of intra articular steroid injections). Gave him a bit of a shock, as he hadn't realised it could be like that, but he instantly took over all the housework, shopping, cooking, cleaning, etc.