Withdraw symptoms?

I’m on day five with no PMO, and today has already been rough. I’m having a lot of urges which I’ve been controlling well but I’m having really bad mood swings. One minute I’ll be happy and talking and then a minute later I’ll just feel extremely sad/ even angry at pointless things. I’m really struggling at holding on to this streak but know if I quit things will only get worse next time I try to get better. Anyone know if these are symptoms of withdraw and or how to combat them?