Hi,
Thanks for asking.
Based on your query, my opinion is as follows.
1.
Radiating pain to back and burning pain to the knee and groin, points towards a possible vertebral compression cause.
2. X-ray or MRI of the
lumbar spine is necessary to identify the location and degree of nerve compression between the vertebrae. At present, complete rest is essential.
3.
Night sweats - could be due to tylenol as it has certain
antipyretic effects. If there are no similar sweat during daytime, when she is lying down, then abscess formation or infections requires evaluation. Not sure, about the cause of
bowel resection, if colonic cancers, then metastasis evaluation will be necessary.
4. Investigations like ultrasound, and MRI of lumbar spine necessary. Meet your doctor for investigations.
Hope it helps.
Any further queries, happy to help again.