Hi there.  I've asked the Admin (Ethan) to look into this once he comes online, however there's a few different spots you can check first:

You mentioned you checked your login history, but did you also check your Connected Devices section too (same page: https://yolodice.com/#settings)?  Login History and Connected Devices are both important.

You say your account has a password, but are you using 2FA?  Do you have any API Keys you created (they would also be on this same page)?  If someone got a hold of your Private API Key (if you generated one), that could be part of the problem.

Additionally, if your PC itself was somehow compromised, this would also not show any new IPs.

I've been on the site since day one, never heard about any security breaches; even if there was some massive security breach, I am quite sure they would steal a lot more than just your DOGE.  Every time we've ever had someone make a complaint about missing coins, it was because their account was compromised, not the site.

Anyways, Ethan will look into it once he comes online again.  Can you provide your UID, if you remember it (the number next to your username), so he can look up your account?  It's okay to provide your chat username too (the one next to the UID), but please do not post your actual login username here.