Emx93
Adult Guinea Pig
We have some tramadol to try, it works on a different pathway to buprenorphine and pathways can become 'blocked' which is what the vet suspects for the pathway buprenorphine has done which is why she's no longer responding to it, hopefully the tramadol pathway isn't blocked and this will help a lot
looks like her arthritis has progressed to her spine too which is why she's having falls where she'll be walking normally then suddenly it's like one side just gives way and she falls on her side
it could also be neurological or the tumour could be pressing on things as it's grown but the signs of spine arthritis are there 
drinking is definitely pain 
Everything crossed for the tramadol

Everything crossed for the tramadol