A/C start up but within 10 minutes , Light started flas& no more cold air

What is your question?

First time I notice this problem. It's R134A system. I checked the Freon pressure , Looks like no leaks . Later I vacuum the system & charge with R134A. L0-Side about 38 PSi & Hi about 150 PSI. On Idle it was working great,but when I go out started speading up A/C stop working , A/C bottom light stared flashing. No noise .

What makes this problem better or worse?

On idle A/C works, but when I go out , it’s stop.

How long has your 2005 Toyota Tundra had this problem?

About a month