First thanks for all your replies. I think my reluctance at bringing things up again is because of lack of response from my T. We were working on some pretty big things and I'd come in with something important to me but my T would acknowledge how difficult the situation was but wouldn't ask anymore about it and keep working on previous stuff, so I naturally thought the problem was just me being a sensationalist and really wasn't important at all.
Now I've got all these things to say he'll think I'm trying derail our current work.