I have a 5mth male who is normally ridiculously active and happy. 3 nights ago he vomited and within it was two small foam balls. These are from holiday decorations - the red holly berry type, they look more like cranberries especially in size. He acted fine after that. The following night he threw up a third foam ball and again seemed fine afterwards. All day yesterday and today he's been very lethargic, literally stays in one place and will not play unless it's to eat or drink. He will eat but much more slowly and is drinking. Has not had a bm in 4 days. I gave him some olive oil with dinner last night. His fur is also oily looking and not his normal shine. I am unsure if he has another ball stuck somewhere inside or if he is constipated. Not sure what next steps I should try.