We recently moved our hot water heater from next to the kitchen sink, to a new location about 12 feet away, but closer to the source of water. We have a well with a submersible pump, a pressure switch and pressure tank. The latter is hooked up before the hot water heater, with appropriate lines running for cold and hot water.
Our water pressure is fine in the kitchen, (it takes a little while now to get hot water, understandably), but our water pressure in the shower/bath tub (end of the line) is nill.
What can we do to increase our water pressure to the shower?
We have checked to be sure there are no blockages nor sediment buildup in the line and the shower head.

Did you notice the pressure drop IMMEDIATELY after moving the hot water heater, or was it a few days/weeks later and then you began to notice a change?