For a few days now my Frenchie has been throwing up whatever we feed him then throwing up even more yellow liquid. The second day I gave him a small amount of chicken and rice and he threw that up. The third day I just gave him little bits of chicken throughout the day then he still ended up throwing it back up. Today I have just given him a bit of natural yoghurt every now and then and some charcoal biscuits that the pet shop recommended and he hasn’t been sick, but before he’s been being sick he starts licking his lips and swallowing a lot which he has done today but again he hasn’t been sick on just the charcoal biscuits and natural yoghurt. He seems his normal self and he wants to eat and drink as normal. Not sure what the problem is.