Welcome to Psych Central, cloudstrife.
I'm not a mental health professional. And in fact I don't even know that much about psychology or mental health. But, to me, what you describe sounds like depression... (perhaps the depression aspect of your bipolar disorder?) A lot of it sounds like the way it has been for me over the years. You may not "feel" like you're depressed. But, at least from my perspective, depression can be complicated. It doesn't always manifest in the ways we typically imagine it will. And having a nice home, a good job, & a loving wife & son don't insulate a person from being depressed.
I was never a person who couldn't get out of bed. I got up & did what needed to be done. (I still do.) I "coped" at least on the outside. But, like you, my ability to concentrate was poor & I could find all sorts of things to do except what I needed to be doing. Over the years, I had lots of different things I became interested in, & dabbled in, but never stuck with long enough to make anything of it. I've also never been much of a socializer &, in fact, at this stage of my life (I'm an older man now) I'm pretty-much thoroughly reclusive.
You asked if you're being paranoid about your bipolar or if there's something wrong. I can't tell you that. That's for you to decide along with whatever mental health professionals you have in your life. However my personal non-professional opinion would be that if the day-to-day patterns you are finding yourself in continue, & you can't shake them, you may want to consider addressing more directly what you're experiencing.
Here are links to 4 articles, from Psych Central's archives, on the subject of depression in men:
Men and Depression: How Male Depression Really IS Different | What is TMS?
Depression in Men: It Looks Different Than You Might Think
10 Things You Should Know About Male Depression
12 Depression Busters for Men
I hope you find PC to be of benefit.