会話（気分・状態）

I'm hectic.


(I'm)Sore. 筋肉痛
I'm pretty sore today.
My legs are sore.
I'm sore from playing tennis last night.
（筋肉が）つる
(have/get) a cramp
Hold on. I have a cramp in my leg.
I think my legs are cramping.
I have a cramp( in my stomach). I shouldn't have eaten that hamburger before I ran




I have a pain in my back./legs/
筋肉痛というよりも身体の部位を具体的にあげる言い方が自然