I want to give my very healthy 4 yr old Rhodesian ridgeback developed the following symptoms the night of 3/28. I want to give him dog pain reliever to see if his symptoms decrease, lessening the possibility of a foreign body being stuck in his throat. These are his symptoms: drippy drooling from nose and mouth, head bob on swallowing like his throat really hurts, eating lots of grass obsessively, eating normally, not throwing up if we don’t allow grass eating, restless but able to sleep. Thanks