I hav a lot of wax in 1 ear, been putting oil in it but now have an echoey feel in my ear, like when you are on a plane, can't get rid of it?

Dis-impact wax: Need to get the wax out (& no "digging!"). Can either try ear wax dissolving product (ask pharmacist, available over the counter), or see your dr / urgent care / ENT to have it removed--should resolve symptoms.

Earwax: You might try applying hydrogen peroxide for a few minutes, then gently try to wash out with warm water in bulb, otherwise might need medical professional to manually remove wax and oil.