Only time helps ease it.
Concentrate upon your rehab, getting fit and strong and as recovered as you can physically - in terms of mentally, that can take longer. To just be out there, maybe riding pillion on a trike would give you at least the feeling again if your DH is prepared to consider riding?
I stopped after breaking my neck, figuring that walking out of the hospital with just a numb percussion side of my hand and forearm, together with the inability to lift my leg to do up my laces without falling over for about ten years, was probably a sign not to push my luck.
The sports that give me the nearest sensations are swimming (it's the cool water and solitude), horse riding and trail running (not good enough to do fell running, but the more windswept and isolated the place to run, the better). If any of those appeal, along with other sports, they can be more accessible with a disability.
At the moment, I'd imagine that you are near on confined to the house, which is going to make it harder, especially with it being so stuffy and stupid hot right now, as you're in pain, hurting in your body and heart, financially worried and having to adapt to the physical limitations of your injuries. Depression is also common with head injuries and time in ITU.
All I can say is that you won't always feel this pain this intensely. Use the concentration, the focus you used on the bike, the physical strength of riding it, all to give yourself the best physical recovery and, as your body heals, you can look towards finding things that also heal your soul.