hunch over, hump, suspicion, intuition, hunch forward, hulch, humpback, hunchback, huckle, humpy, more...

straight, upright, erect

premonition, intuition, instinct, gut feeling, sixth sense, more...

strong, good, own, first, initial, sudden, mere, intuitive, slight, original, vague

something tells me,   gut instinct,   nagging feeling,   funny feeling,   arch back,   intuitive feel,   to shrug,   vague impression,   vague sense,   bad gut feeling