Post AstraZeneca Jab Tinnitus — Only When Sitting / Lying Down

Hi All - hoping for some advice please. I have developed tinnitus post AstraZeneca COVID-19 jab number one, as well as a whole host of immune related adverse reactions.

My tinnitus is only present when lying down / sitting down but, like everyone else I guess, it's driving me nuts! At one stage I received an IM injection of Ketorolac which resolved it but was unfortunately short lived with it returning 2 days later (but since Ketorolac is a NSAID it did make think it could be inflammation). Since then I've been on a high long dose of Prednisolone to suppress the immune system and treat inflammation but the tinnitus has not abated.

I can't understand why it only happens when sitting or lying down and would welcome all thoughts. Also, if anyone else post AstraZeneca jab has had any success in getting rid of it, I'd also be extremely grateful to hear.