Weight 74 kg, height 5'5". total s cholesterol 248mg/dl, hdl 33, ldl 144, tg 357mg/dl. but i don't eat that much & walk daily. what else should i do?

Hyperlipidemia: Your serum lipids are at very unhealthy levels. Before committing to lipid lowering medications, see a registered dietician who will prescribe a proper diet that you must commit to and then go for followup lab work after 6-8 weeks. Your syndrome is often tied to eating too many carbohydrates which cause spikes in the blood sugar and insulin resistance which is a major trouble maker in the body.