Hi,
Welcome to HCM,
After going through your details provided you are 51 years and your cholesterol is 7 mmol/l which is high as per your details you are taking care of diet also you are not overweight and there are no other risk factors that is why not high risk,but you have positive family history.

If you are having thyroid level are low and TSH is high may be the cause for high cholesterol level so please check your thyroid function again and if need take supplementation of thyroid with consultation of Physician then once your thyroid function are normalized than Lipid profile will come to normal. You do not need to suggest therapy to Physician let him take his decision what is best for you.
In the meantime take care of diet and exercise regularly
In case Your Lipids are deranged even after normal thyroid function then drug therapy like Atorvastatin may be prescribed to you.
Take care
Good Luck.

Hi friend,
Welcome to Health Care Magic

You need a Lipid Profile - HDL, LDL. TG...
You need to continue Life Style Modifications -
Repeat in 6 weeks - if still elevated, you need drugs (statin)

Keep your weight to normal / even a little less
Quit smoking, if you are a smoker
Do regular EXERCISE – say walking or jogging - 30 minutes a day / at least 5 days in a week. Isometric exercise (like bull worker) is bad.
Healthy FOOD is a must. Avoid saturated fats – coconut oil, palm oil, butter, ghee, full cream milk...Avoid junk foods in particular – French fries have palm oil / Pizza has cheese /
Change to Poly-un-saturated oil – like sun flower oil.
Include Mono-un-saturated oil – Olive oil.
Repeat the test in 6 weeks.
Cholesterol can still be high, in spite of diet and exercise – you need drugs; Because it is also manufactured in the liver – and that is determined by heredity. Statin is the first choice. Some start it straight away – even with normal levels, even without problems (Primary Prophylaxis)

Take care
Wishing speedy recovery
God bless
Good luck