I agree with Chris, you are so keen to see an improvement in continence that "good day" can deceive you into thinking things are OK - usually it is just a high point along a very jagged recovery graph. But over time the highs will get higher, and the lows not nearly as low.
The primary use of tadalafil is to ensure the blood flow to your penis is enough to ensure the tissue remains healthy, and the pump does the same and also ensures the bits that need to stretch during an erection can still do so. So both are worth persisting with.
In both cases it will be several months before you get a real impression of how good your recovery is, 7 weeks feels like a long time but considering the trauma your body has been through there is a lot of recovery still to come.
I have never heard of leg problems related to tadalafil. I don't know how active you are, it may simply be a reaction to a forced period of relative inactivity. When I have suffered musculoskeletal aches in the night (probably attributable to age!) I have found a couple of ibuprofen at bed time stops them happening.