Why tryglyserides increase even though other lipids like LDL HDL, VLDL are normal in a lipid profile. If it is high what happens, or if it is very low what happens to one's health

What medications are you on? Cholestrol meds, birth control pills, steroids, beta blockers, diretics and glucocorticoids can have an affect on your triglycerides. Also alcohol and some sugars. Substitute olive oil and foods containing omega fatty acid for bad fats whenever possible they are the good cholestrols.