Yelling while stuttering

Yelling while stuttering Hi, I'm the mom of an almost 5 year old who had a speech delay and over the last about 18 months has really begun speaking. Around 4-5 months ago he developed a stutter, but when he starts stuttering he shouts and then when he's able to finish what he's saying the rest is at a normal volume. Has anyone had experience with this or any tips? Pediatrician is aware.