I've had an ear & sinus infection and it was hard to get cleared up with only a single rx of antibiotics..
i had to go back for a inhalation/steam treatment in drs office something like an asthma tx I think.. as well as a week of steroid rx.

But I didn't have symptoms of what you list at all..
Mainly it felt like my sinuses were stuffed with cotton and dry feeling.
Sharp ear pains at times too.

Since most of your sx are on the left, I'm thinking that c rib might be much of the problem...