How Long should I wait to see a dentist after having a damaged filling?

A few days ago, I took a bite of food and have been dealing with a toothache ever since. The tooth has an existing filling, but due to the current situation with the virus, I can’t get to a dentist for treatment.

I’m doing my best to manage it—I’m keeping the tooth clean, avoiding chewing on that side, brushing with Sensodyne twice a day, using mouthwash, and swishing salt water regularly. I’ve also been applying a little toothpaste directly on the tooth before bed.

I’ve cut out all sugary foods and drinks and am only drinking water, tea, and milk. The filling still seems intact, and I don’t have much pain with hot or cold drinks, just a slight discomfort. I can chew on it, but I only tested it briefly and felt a dull ache, which throbs occasionally. I also noticed a metallic taste in my mouth.

This started on Tuesday, April 7th. Will the tooth be okay until I can see a dentist? I had a check-up in February, and all my teeth were fine then.