My Daughter Has Been Suffering From Chronic Pain, Weakness, Fatigue,

My daughter has been suffering from chronic pain, weakness, fatigue, severe GI issues and tremors. Her neurologist did a Protein Electrophoresis lab and results returned Low Albumen, High Alpha 1 Globulen, normal Alpha 2, normal Beta 1 and 2 Globulin and Low Gamma Globulin. He says it may just be due to her drastic weight loss from Bariatric surgery. Should I see another type of doctor to check out hypogabbaglobulinemia?