Hi doctor. I am Amardeep Dhamija from India. I have been having my son (age: 18yrs) treated for persistent back ache for 1 year and 4 months now. The problem was diagnosed as arising from low Vitamin D levels ( 2.80) and Vitamin B12 (below 83) levels on 02Dec 2011. He was given ARACHITOL shots and also put on D-gain. I showed him subsequently to an endocrinologist who had a liver test done (SGOT: 14) and (SGPT:14) , Serum Bilirubin (1.37) and Conjugated Bilirubin (0.52) on 18 Dec 2011. Thereafter, I took him to a very senior orthopaedic surgeon who put him on Calcium and Vitamin B12 supplements . Ever since, he has been taking them. His latest tests done on 21 Feb 2013 show Vitamin D 46.40, B12:699 , Calcium 10.00, SGOT: 34 and SGPT:69. Related to this or not, my son also was suffering from Nausea, vomitting etc for which he was prescribed antacids by an endocrinologist. These symptoms have alleviated somewhat. Query: Sorry for the lengthy background but is SGPT level of 69 something to worrry about. I should also like to mention that he is in the final year of school and preparing for exams and is under considerable stress as are other kids like him. Lifestyle: sedantary for about 2 years. Please advise regarding his liver condition and generally what he should do. His back ache is considerably reduced and is only intermittent (normaly when he sits for prolonged hours). Thanks.