Here, we notice two things. First the differences in spelling in the Greek; second, how close the Greek word for "thunder" (βροντης) is to this Aramaic phrase. This is why there probably was the addition of the clarification. What strikes my further is how the Peshitta mimics the Greek text, clarifying an already Aramaic phrase.

ܒܢܝ ܪܓܫܝ means quite litterally, "My Sons, My Senses" but can mean "My Sons, My Tumults" hence the Peshitta and Greek clarification to "thunder" (ܕܥܡܐ and βροντης respectively). The clarification is awkward, and is most likely, seeing the evidence, an interpolation or scribal gloss. The Aramaic just does not mean "Sons of Thunder."

Here, the Byzantine and Textus agree with the Peshitta, where the Westcott agrees with the Sinaitic palimpsest. The only way to check for this validity properly would be to look up the city's name and spelling elsewhere. However, the texts are 2 to 1 for the Peshitta here.

Directly quoted Aramaic. The only thing different in spelling with the Greek being vowels. Unfortunately, we don't have the Old Syriac to this passage.

This Aramaic was used to describe a Jewish concept. The Greek does not varry, but the Aramaic does, ܩܘܪܒܢܝ having an extra yod at the end that the Sinaitic does not have.