About 3-4 weeks ago i started experiencing some back pain but only when i lifted heavy boxes, the pain i have is in the mid to lower region of my back, it becomes extremely hard to defecate and i feel that im backed up all the time, when i do defecate the pain is beyond anything. i went to see a doctor today and he told me that it could be anything(from stretched muscle to pinched nerve) but he just sent me home and told me to take some aspirin and it would go away in a couple of days, but tonight my lower back pain is so bad i cant move certain ways without almost dropping, i sweat a lot (but it could be just because theres something wrong) and i feel disoriented and tired, if anybody can help that would be awesome thanks.