Thanks for posting your query
As you said you are dwarf, having arthritis
in legs & suffering from scoliosis
and these make you uncomfortable to sleep in bed.
to confirm the cause of your scoliosis whether congenital, developmental or idiopathic and to know the severity of scoliosis detailed examination of spine is necessary.
So you have to visit an orthopedic surgeon for spine exam. & xrays and other inv. as required.