Reuben vomited today after drinking water and mainly threw up water with a bit of chicken he had earlier from recall training. Now I thought maybe he had just drunk to fast but thinking about it he vomited last week at least one day, the week before and maybe another day (trying to rack brains). He also tried to vomit yesterday actually but nothing came up but he was eating leaves of the tree in our garden.
Should I be worried? He seems fine otherwise but maybe there is something wrong?