Lower back left side head. Problem.

Past 2 years I have mild pain on left side of back of head and cervical joint . Constantly feeling something fluid like inside in it . Sometimes little bump occur on that region which goes in or out .Last 3 months I have ringing sound in my ear and also sometimes feel like my molar tooth comes out .cevical MRI , CT scan, styloid process x-ray , cervical x-ray, T3,T4,TSH, hemoglobin,Na , blood sugar , audiometry ,all are normal . ENT also clean my ear and no Fluid inside it .I taken nerve pain , allergy , medicine , vitamins tablets but nothing work . I also visit dentist and have my tooth x-ray but it's also normal . I have indigestion and bloating problem too . In my stool test report their is presence of parasites. I want to know that all these symtoms are triggered by stomach problem.