Hi, I understand your concern regarding the pain. Since you have mentioned that you have had back spasms over three weeks and now reeling with severe back pain, I would like to tell you that this occurs mostly due to our lifestyle habits like usage of computers, watching lot of TV, bending forward while reading, driving vehicles excessively, Firstly you need to give a bit of rest to your body. 1) You can take an analgesic like Paracetamol/tylenol after getting a prescription. This is only to relieve your pain. 2) Do not take analgesics excessively. 3) You need to keep an erect straight posture of your back and neck. 4) Do stretching exercises, when you wake up lie on your chest then using two hand lift yourself up, in a arc like position and then lie down slowly. repeat his at least ten times daily. this will surely relieve back pain. You can watch online videos for such exercises. 5) If your problem aggravates you need to get yourself physically examined and investigated through radiological methods like X-ray and MRI. Hope these suggestion help you. Contact for further follow up. Thanks with best regards, Dr. Suhas Chauhan