Hello and welcome to HCM,
The symptoms that you have mentioned pertain to different organ systems.Low back pain
is due to spinal problem or musculoskeletal pain
. The cause will be determined by MRI of the spine.
nausea, flushing, black outs suggests disorder of sympathetic system.Pheochromocytoma
is one of the disorders associated with these symptoms.
However, a negative test for 5-HIAA rules out the possibility of pheochromocytoma.
There are others conditions associated with these symptoms.
There are some food items which cause these symptoms.
A detailed history and complete examination are required to diagnose this condition.
Lack of energy, dizziness
, fatigue are commonly due to anemia. Anemia occurs due to low hemoglobin
. Get your hemoglobin levels and RBC indices to know the status of your blood parameters.
Thanks and take care
Dr Shailja P Wahal