This'll probably be a stupid question but I'm allowed to be stupid as I'm in full scale baby brain fog as I'm 38 weeks preg 
I have a lovely ds, 21 months and 90% of the time his life is happy and easy going. He is a very wilful child and even now there is no cajoling or persuading him once he's made up his mind.
He's under the weather at the minute, won't eat but is drinking plenty of water. He's in terrible form, so grumpy and whinging constantly. He's never been interested in TV and when he's upset he just wants to be carried around by dh or I.
He's been ill since Thursday and it's been a long few days, anyway today I'm so shattered and exhausted I couldn't carry him around and he screamed for hours, a high pitched demonic scream 
He stops crying when I pick him up, but if I sit down and stop walking he starts to cry again. Bear in mind he weighs 2 stone and I've 2 stone of baby weight so it's not easy to carry both!
I just left him to cry on the sofa today. I couldn't stand anymore of his howling but he really did cry me out and didn't stop until I came back.
He's not seriously ill by the way, it's just a nasty cough, cold, temperature etc.
I feel so bad though, he just wanted comfort and I wasn't able to provide it today,rather I got irritated and left him to cry.
Pretty crappy parenting. I don't have many days like this but I've had a few days during ds's lifetime where I have felt that I can't take anymore.
Is he likely to remember my crapness as a parent?
Dh was working today so that's why he didn't take over! He's out with dh now as he's home from work. He definitely prefers dh to me and that concerns me. Dh naturally more calm and chilled out that I am. E.g ds smacked dh across the face earlier and he was so calm about it whereas I know if he'd smacked me today, I'd have been really cross.
Sorry for rambling!