Talk to your priest. No one here on this board can answer your question, we can merely speculate.
First, your marriage is **valid **unless it is proven otherwise. You were married in the Catholic Church and completed all the canonically required paperwork. Your marriage is valid.
Second, certain mental illnesses **can **be an impediment to a valid marriage if the parties are unable to undertake the properties of marriage, form intent, or give consent. Mental illneess is not *automatically *an impediment.
Third, if under close scrutiny with lawful authority in your diocese, you come to believe some essential element was missing-- ie, valid consent, etc-- YES it can be rectified. In some cases it is enough to simply make a new act of consent privately, and sometimes it requires canonical form.
Your priest will guide you.
I think your OCD is effecting your judgment here. You are overthinking and worrying without good reason. Your priest would not have conducted the marriage if he believed there was an impediment in place.