My horse dissapeared

So basically I have had a horse for a long time, it's the brown starter one, not really anything special. I was basically dumping stuff in my bank, and there was a chest icon, which I clicked. Instantly, all the things in my inventory were transported into my back, including my horse, which was a saddle icon. I thought that was pretty cool, and I checked my bank to get my horse as I was going to for a quest, however, I couldn't find it anywhere. Is this a glitch or what, cause the only option I have now to buy a new horse, which I definitely can't afford(the cheapest I found is 1.6k emeralds). Plz Help.

 

It can be in any slot of your bank, try finding it

 

yeah I did, couldn't find it.

 

Try to click different empty slots in your inventory and bank.