Pain in the low back can be a result of conditions affecting the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen, and the skin covering the lumbar area.
Chronic sinusitis Chronic sinusitis, or sinus infections, cause a stuffy or runny nose, tooth pain, fever, sore throat and more. Mononucleosis Mononucleosis is a viral infection causing extreme fatigue, sore throat, fever, rash, muscle aches, and more.
1 The skin condition known as rosacea can also cause hot face and ears. Other symptoms include broken veins and redness.  The condition can also be a sign of carcinoid syndrome. Hormone releasing tumors in the appendix, bronchial tubes, colon or small intestine cause this syndrome.