Is there any way to still recover that money at this point, or is it basically gone due to the statute of limitations?

In 2021, I was diagnosed with cancer. After doing the math and talking insurance company, I realized I couldn’t afford treatment in the US. Thankfully, Im a dual citizen, so I moved back to country with free healthcare and was able to recover fully over about for 3 years.

Now it’s 2026, and Ive realized I may have missed the deadline to claim a tax refund from my time in the US I only worked there for about four months, but I likely overpaid taxes during that period.

Is there any way to still recover that money at this point, or is it basically gone due to the statute of limitations?