I am having severe back pain at L1 - L2 that radiates down to hip crest and into groin.  I always have some constipation due to pain pills and other meds, but it is severe since the back pain got worse.  I have had L2 through S1 fused with titanium.   I fell face down twice this summer
There should be check x-ray for position of fused area of spine. Lie on hard bed, avoid bending and lifting heavy objects, wear lumbar brace in daytime, take chloxazone500mg BD and Erosion forte once a day for 10 days an view after check x-ray