Is everyone dealing with some weird flu?

My friend/ flatmate and I have been dealing with severe flu symptoms for over 10 days now. While the fever subsided in the first 2-3 days, we’re dealing with constantly feeling pukish, runny tummy, and feeling weak. We’ve been waiting for these symptoms to die down naturally, without medication, cuz I really don’t know if there’s a medicine to stop ‘feeling’ pukish or for a runny tummy. I’m sure there is, but unsure if going to the GP will just be a waste of time or no.