this sound can be normal. when we close our ears we do not hear outside sound so we feel that there is some sound coming from our body. if you have a cough or cold it can also lead to similar symptoms due to eustachian tube block. to rule out any pressure changes in your ear you can get a test called tympanometry. and get you blood pressure checked. for further queries consult an ent otolaryngologist online --> <link>
what is the sound that i hear when i close my ears with my fingers?