Tabs were lost after iPhone randomly restarted

My IPhone randomly restarted which I’m guessing was to low storage (screen with the spinning gear) and I went to go check safari only to see that half of my tabs were gone, including the ones I had in private tabs. I then realize that the tabs that are there were from months ago, including some I’d been closed out of. There were some tabs in Private that I had closed out of for a while yet they were there so I’m wondering how I could (or if there’s even a way) get back my tabs that I had before my iPhone restarted? Thanks.