Losing my mind!

Ca

My son has always slept through since the 4 months regression, through any illnesses etc he's been a bit dodgy but has always gone back to sleeping through. Anyway he was real poorly about 3/4 weeks ago and then better and we went on or honeymoon. Ever since he got poorly i have not had a wink of sleep, i'm actually losing the plot. I need my sleep function and especially as he's now crawling everywhere and pulling up on anything and everything he's so full on and constantly on the go. Please i need some help! I sleep trained him at 6 months but even that's not working this time round. Please mammas i need help! 😩😩😩