It's in other threads so apologies for repeating this information...
@erniej
It could be your chewing - jaw movement - that is making it louder after a meal.
Or... it could be salt and salicylates. Both put the volume of my T up - too much makes it screech to hell & back.
Are you having gravy on your pork loin or steak? Give up the gravy if you are.
Eat peas that have already been podded - not the pod itself.
Avoid most fruits - mango & golden delicious apples & pears are ok. (Reducing fruit must be at your own risk because obviously it is considered 'healthy' - but it's also one of the highest salicylate foods & salicylates are used in laboratories to induce tinnitus in animals).
Stop drinking tea & eating mint & spices. Basically - don't eat anything out of a jar (especially jam!) or from a tin. Avoid lemons and anything with lemon in it.
Give it a go - stick to a diet of low sal foods for a week and see if it makes a difference. Then discard it if your T still shrieks. It takes about 3 days to kick in so you need to give it at least that long if you're going to do it.
Typical low sal diet below - just to make it easier:
Breakfast:
Omlette with cheese (the one with lowest salt value you can find) and leeks. No salt & no pepper.
Snack:
Handful of cashew nuts.
Lunch:
2 oz cold cooked pork loin (cooked yourself with no gravy & no added salt or pepper) sandwich with no spread (you can have mango chutney) & iceburg lettuce.
Sliced fresh ripe mango with a heaped tablespoon of live greek yoghurt sprinkled with toasted sunflower seeds.
Snack:
Golden delicious apple.
Dinner:
Steak (no gravy) or haddock (no tartare sauce) with boiled potatoes (old, not new, thickly peeled before boiling), brussel sprouts and masses of savoy cabbage or a few brussel sprouts.
Half a bar of cocoa rich dark organic chocolate.
Hope this helps!