願望・感情N3
〜てたまらない
terribly... / can't bear not to...
Structure
V-て形 + たまらない；い形（くて）+ たまらない
Explanation
Indicates feelings so strong one can hardly bear them, "terribly...". Attaches to the te-form or くて-form.
Examples
故郷の母に会いたくてたまらない。
I can't bear how much I want to see my mother back home.
この仕事がおもしろくてたまらない。
I find this job terribly interesting.
Note
てたまらない stresses feelings too strong to bear, close to てしかたがない/てならない.