I have had ear ringing ever since finishing chemo. My doc said it is not related, but I don't believe them. It has been over 4 years. It has progressed to hearing loss i none side and the ringing in the other. I hope yours goes away. You do get used too it, although at first it is very distracting.

I also hear cicadas 24/7 which we hear in the summers here in AZ, very irritating. I didn't have chemo, had radiation, and on anastrozole for 4 years. I was blaming the hissing on BP meds but maybe it's the breast cancer meds. The only thing that helps is noise in the background to distract from the hissing.

The term for hearing loss/ tinnitus related to the cancer drugs is "ototoxicity".

I hear constant cicadas- 24-7. It turns out it is nerve damage from one of the drugs in my chemo cocktail (Carboplatin). Doctors don't tell you about the possible hearing issues, as they feel it is a "rare" situation, but I feel it is more common than the drug manufacturers care to admit. As it was explained to me, the hearing issues (including possible progressive hearing loss) can happen because of two possible scenarios. One is the nerve damage to auditory nerves, which may get better (slim chance). Or, the same drugs that cause us to lose our hair, eyebrows, eyelashes, etc. can also cause the loss of the fine hairs in our ears. The problem is that these hairs do not regenerate- so the hearing loss associated with that scenario is permanent. The hearing issues may also play a part in the balance and vertigo issues cancer patients experience.

Doctors who specialize in hearing problems have been advocating for cancer patients to have their hearing assessed prior to chemo, but it is not currently a standard protocol. Without that consistent, thorough data reporting, researchers have to go with the data that is reported randomly. Based on that, their estimate is that with cisplatin drugs (like Carboplatin) the hearing issues may be affecting 20%-40% of the cancer patients that take those drugs. If hearing issues are noticed during treatment, a change in protocol could be considered in an effort to preserve hearing.

There is a drug in development (Phase 2 clinical trials) which the manufacturer hopes will help preserve those little hairs- fingers crossed, sisters!

I had mild 'pulsatile' tinnitus ( where you seem to hear your heartbeat) before chemo-but it got much worse during chemo. I finished the chemo one year ago and it's gotten much better. MY ENT decided we should do an brain MRI/MRA to be sure there are no vascular problems in the brain-which apparently can occur with this type of tinnitus-and luckily it was negative for that.
I also had a brief bout of vertigo about 6 months ago. My husband has had it numerous times-so I knew to try the 'Epley maneuvers' and that took care of it quickly.
I also have hearing problems and have had hearing aides for at least 5-6 years-and tinnitus is more common in people with hearing loss

Although I have not experienced the ear ringing I can sympathize with you on how the nulesta shot can make you feel dizzy and weak and soar. My shots made me feel that way for about 5 to 6 days.