I will be the last one to tell you it’s your imagination because I know for a fact when it happened to me it was a very real phenomenon. It is why my user name on here is my favorite Saint followed by the number 111. I can not speculate on your situation, only you will know if the numbers have meaning, as God can get our attention using numbers, I’m living proof.
In my case I started seeing the number 111 and 1111 for about a year before my return to the Church, it was usually when my secular life had me doing something I should not be doing. It freaked me out because it was like time stood still and the clocks would be on those times for extended periods of time. I eventually told my wife and a friend at the time, they too witnessed how those numbers seemed to follow everything I did, gas totals, receipts, times of calls, etc.
Now for those who think it was my imagination, I would like to know why I had to take back four cable TV boxes due to them coming on at 1:11 or 11:11 and being on channel 111. This did not happen once, or even twice, but several times. Why would the clocks in my house and the radio in my truck often be stuck on those times?
It took a long time for me to take it all seriously. Those numbers began to have meaning and a purpose in my life. After my conversion it dawned on me while standing in line at Hobby Lobby, there it was on a little note book as I was pondering God and thinking about those numbers, on the cover was Psalm 111 “Fear of the Lord is the begging of wisdom.” I bought the little notebook as a reminder. I thought it was extra special too that the only email I ever received from my father as he was suffering from cancer was an email on November 11 at 11:11 AM that showed ducks flying in a formation that looked like a smiling face, and the email read “God is smiling at you.”
Don’t go crazy over seeing numbers but don’t discount them either. If they have meaning you will know, not one person on here will know any more than you will know when God speaks to them in other ways. God created numbers and numbers carried great weight in Scripture. Just simply pray about it and God will do the rest.