Very interesting. Sorry to hear about that. What is very interesting about lemon juice is that even though it is acidic, when your body processes it it becomes basic.
Lemon juice is literally the ideal example. Check out all my demos starting at #2. You can eat the lemons straight up and they taste like the best lemonade you've ever had.
No health risks besides maybe consuming too much acid in one sitting (but seems like that is doctor's orders for you). Coca Cola ran a study in November 2019 and showed no long term side effects neither to your taste buds nor to your body.
https://www.sciencedirect.com/science/article/abs/pii/S02786....