Some days I can't stand my kid

Here, I said it. There is nothing I wouldn't do for my 2,5 yr old and I love him dearly. But some days like today I hate to even look at him. For the first time it's me who's not been well (I raise him alone) and he's all over the place because of it. Cancer has been rulled out thank God (diagnoses severe exhaustion causing low immunity, inflammations and hormonal imbalances whatever it means, I frel drained), but I am quite underweight and bought a toaster to make easy snacks for myself. One thing for me in ages. He broke it within hours stuffed it with coins, then he burned his hand although I took time (seriously!!!) to educate him showing him it can burn his hand and he MUST NOT touch it. Of course not only he broke it and vurned his hand but now comes every three minutes whining over his hand. Won't allow me to even cool it however. Some days I am DONE with that little brain that understands NOTHING! This is the hardest part of parenting for me. I don't mind anything. Just the waste of words and energy! Rant rant rant