Hi! Unsure I’m allowed to post yet but…
Twitch itself has been having issues loading chat and profiles lately, occasionally @TwitchSupport will tweet out, they had tweets relating to it on the 7th and the 11th, however in my own experience the problem has been more frequent than just those 2 times.
You can check if your ISP is the problem by simple running a speedtest, there’s a great test site by Ookla just a google search away.
I’ve been seeing streamers literally stop streaming because the entire chat went away during these times, condolences but hang in there, I bet they’re working hard to fix it 
Also not guaranteed that’s your exact issue, but Rate Limiting while setting up stream is almost certainly not it lol