~てしょうがない・~てしかたがない
A feeling or sensation is intensely strong
You’ll be able to express an overwhelming feeling or sensation and distinguish this ~て form from ~てもしょうがない, which says an action is pointless.

たくさん歩いたので、温泉に入りたくてしょうがないです。
takusan aruita node, onsen ni hairitakute shouganai desu.
What do you think this sentence means?
Because we walked so much, I really, really want to get into a hot spring.
Express an overwhelming feeling or sensation
~てしょうがない (or ~てしかたがない) attaches to emotions, physical sensations, or desires in the て-form to express that a feeling is so intense that the speaker cannot control or help it ("unbearably...", "cannot help feeling...").
うちの犬がかわいくてしかたがない。
uchi no inu ga kawaikute shikata ga nai.
Our dog is just so cute I can’t stand it.
足が痛くてしょうがない。
ashi ga itakute shouganai.
My feet hurt so much I can’t stand it.
Attach しょうがない directly to a て-form emotion
Conjugate an emotion or feeling verb, i-adjective, or desire into its て-form, followed directly by しょうがない or しかたがない without も.
昨夜はあまり寝られなかったので、眠くてしかたがない。
sakuya wa amari nerarenakatta node, nemukute shikata ga nai.
Because I couldn’t sleep much last night, I’m unbearably sleepy.
花粉のせいで、目がかゆくてしょうがない。
kafun no sei de, me ga kayukute shouganai.
Because of the pollen, my eyes are unbearably itchy.
来週から始まる北海道旅行が楽しみでしかたがない。
raishuu kara hajimaru hokkaidou ryokou ga tanoshimi de shikata ga nai.
I can’t wait for the Hokkaido trip that starts next week.
隣の部屋の工事の音がうるさくてしょうがない。
tonari no heya no kouji no oto ga urusakute shouganai.
The construction noise from the next room is unbearably loud.
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