My 2 year old (almost 3) started with vomiting once on Tuesday evening, on Wednesday he was very quiet and off his food. On Wednesday night he was sick all over his bedding, then on Thursday morning he threw up multiple times and was visibly unwell (pale, lethargic and off his food again). He had a nap that afternoon then woke up seemingly much brighter.
That night he was sick on his bed covers again…Friday he threw up once but was much better in himself, Saturday he was sick a very tiny bit after he’d had some lunch and Sunday (yesterday) he wasn’t sick at all, day or night.
Today he’s been in really good spirits, playing, running around, eating and drinking fine, then this evening while eating his dinner (pasta) he started throwing up again and it kept coming, basically the whole contents of his stomach seemed to come up 
after we’d cleaned him up, he was running around playing again, no temperature and no sign of discomfort. He’s now in the bath splashing around and giggling, not lethargic at all, he’s not dehydrated either.
I was very unwell on Friday with it, although I had diarrhoea opposed to vomiting, I also had a fever and chills, along with body aches. I felt pretty terrible. I’ve been left with a feeling of nausea that comes in waves and a weak tired feeling. But I’m eating okay now.
We’ve done covid tests, all negative.
Do we need to call the GP or 111? Or is this a lingering virus that needs to run its course? I’m fed up with washing sick covered clothes and bedding