Your ability to pursue damages for incidents that happened in years past will depend on the circumstances of your case.
Generally speaking, the Colorado statute of limitations for personal injury is two years. If your injury happened within that timeframe, you should be able to speak with a lawyer and initiate a claim.
However, if you did not discover your injury until years after the fact, there may be exceptions in your case. Call a Colorado lawyer with experience in this field today to ask about your ability to move forward.