Hi Denis,
It might, but it will depend upon why you are in pain. I suspect that a large proportion of the recumbent riders on this forum ride recumbents because they ease pains caused by weight bearing on the arms and pelvis when riding a DF bike. That's certainly the case for me.
As you say, a recumbent seat spreads the weight of your torso over a wide area and that may relive some of the pain. If you are comfortable lying in bed, or reclined on a sofa, then maybe the recumbent will work for you.
If you let us know where you are, there may be someone on here who can offer you a test drive on a trike (or a bike maybe - but trikes are easier to ride!). Failing that, D-Tek have a good number of used machines for sale (he's in Ely, near Thetford), Laid-Back bikes are in Edinburgh, and there are dealers in Glasgow and London that I know of (and maybe Bristol) - so not many, but you should be able to find something to try out to see if the reclined position helps you. Then you can decide on what machine you'd like.
Some trikes have suspension, some don't - I find my non-sus 700c recumbent bike really jarring on rough country lanes, and my rear-sus 20/26 bike more comfortable, but slower. You also need to decide if you can stand the bumpy ride from a non-sus trike, and don't forget that a 26" rear wheel will be more comfortable than a 20" rear.
Don't forget that trikes can be quite low to the ground, so if you have difficulty in getting onto and off the floor, then that maybe a problem. Lots to consider!
Others will be along soon............