help the carpenter in Knoxville

loss water pressure after installing new shower
HELP I had to reroute pipes in basement and added about 3 ft to both sides to avoid the floor joists.in order to get to the water pipes to line up, to the ones that came down from the facets in the shower. i had to create a U shape in the pipes. could this be the result in loss of pressure?

pressure

Not likely, unless there is more to it that you are not telling us.