Severe back pain made worse by deep breath, movement, and daily activity. not made better with rest, ice, heat, or tylenol (acetaminophen).

Many reasons: At you age group, back pain can be due to many causes (disc disease, muscle spasms, tendon damage, kidney/ovary pain, etc). Please see you doctor for a full exam to better aid in the diagnosis.

Concerning: That level of pain is very concerning. Were you involved in a trauma? Has this type of pain happened before? You should be seen for an evaluation. Hope you feel better!