why do sides hurt?

[heavy_duty]

why do people get sore side and back when on gear?
(and drinking lots of water)

 

[cubuff27]

Depends on the gear. DBoll gives me serious back ache just doing normal stuff like mowing the lawn I get a back pump and have to stop and stretch it out. Feel like a big pussy.

 

[migcor]

When I ran winny alone it gave some kidney pain.I started drinkin lots of cranberry juice and pain went away.