Husband stone walling me but claiming he isn’t

We have been married almost 7 years, been together almost 12. We had a small disagreement on Sunday night but quickly resolved it before going to bed. It was over who had to turn off the light before sleeping. THATS HOW STUPID AND SMALL IT WAS. I ended up doing it, we apologized and went to sleep but since then my husband hasn’t been the same.

I’m a SAHM to two special needs kids and also a 13 month old so my days are busy. He is my only real adult interaction during the day. Yesterday (Monday) he came home from work, I said hi, he ignored me, went and took a shower and got straight into bed without saying a word. I asked if something was wrong, he said no he was fine and went to sleep. No asking about the odd or myself or our day. I thought it was weird but I let it go. I make him lunch and dinner everyday so I packed his lunch both days and he didn’t eat it. Claims he wasn’t hungry and is also refusing to eat the dinners I have made two nights in a row because they don’t “sound good” even though I know they’re his favorites.

Tonight he got home pretty early, again said nothing to me or the kids and went straight into the shower. When he got out of the shower I begged him to tell me what’s going on and he claims there’s nothing wrong, he’s fine and what do I want from him. He went to the living room and is now sleeping on the couch at 5pm while my kids beg for his attention. I once again asked what I did to annoy him and he said nothing, he’s fine, he’s not going anything everything is perfectly fine. I feel insane. I told him that and he just shrugged his shoulders and looked away. I’m not getting all the kids ready for bed and he’s still on the couch interacting with no one and claiming there’s absolutely morning wrong and he isn’t acting weird it’s just in my head. You could cut the tension in the house with a knife and I have no idea what to do. Advice would be great rn. I feel so pathetic begging him to acknowledge me at all.