Hi, please may you assist me. my ear is blocked (but it feels like the block is deep in there), my head feels off balance and uncomfortable (same side as blocked ear and back of the head) and i feel nauseous and have diarrhea ?

Blocked ear: Blocked sensation in the ear can be from wax build-up or blockage of the eustachian tube which connects the back of the nose to the middle ear. Nasal congestion with mucus can do this as in a head cold. This can cause dizziness and nausea. Diarrhea suggests a viral infection. If your nose feels blocked, apply a nasal decongestant spray and gently irrigate with clean warm water. See MD as needed.