High Fecal Calprotectin but Nothing from Colonoscopy

I was hoping to seek some advice on where to go next. I have been having a whole slew of symptoms including the following for 4 years with no diagnosis:
Chronic Fatigue
Muscle Weakness and Pain
Irritable Bowel rotating between constipation and diarrhoea
Reoccurring Fissures
Bloating, abdominal discomfort
Brain Fog
Parasthesia in legs
Muscle Stiffness
Two of my direct family members have been diagnosed with Crohn’s disease and as many of my symptoms stem from my…