How to list 2 different events happening the same day on a vertical responsive timeline?

I'm designing a responsive timeline for an orthopedic patient rehab service, and running into an interesting problem with listing separate events on the same day. Our patients have a prescribed care program, over the course which they're given different exercises and content to interact with. All of this is broken down on the timeline (the UI is a vertical line along which the individual events are plotted in dots with corresponding cards explaining the events), but sometimes different events can occur on the same day (ex. getting prescribed a new exercise and given a new form to complete). I've experimented with assigning these multi-events a single "dot" on the timeline, with the two (or more) cards stacked tightly on top of each other. But I'm wondering if there might be a better solution? Thanks in advance for your feedback!