Simply put Tramadol and its metabolites are processed via the liver like almost anything we take in our bodies. Tramadol Hcl (ultram) is metabolized via at least two different demethylation processes in the liver. The cytochrome enzyme system responsible for this is apparently seperate than that of most methylated PHs so you're not really going to have to worry about further liver toxicity.
But with added liver stress from PHs you may get a slightly higher level of free tramadol as its metabolism could be slowed....... but probably nothing to worry too much about, maybe a little more lethargy or other sides if anything noticeable at all.
IMO the pain is going to hinder your gains and a lot of other things so control it. But I always think your doc should know EVERYTHING you're taking.