Absolutely, a doctor of physical therapy. Physical therapist have direct access and are your movement and musculoskeletal specialists. We are proven to be very accurate with diagnosis even without expensive imaging. A PT will be able to tell you if it is hip joint, hip flexor muscle, or SI joint. Severe hip joint degeneration does not occur overnight so more than likely it would have been a gradual increase in pain.
That is not true if it is true motion sickness. However, if it is BPPV, which is an inner ear issue, yes, this can be treated by a physical therapist within a matter of minutes. This type of vertigo or "room spinning" usually occurs when rolling in bed, sitting up, or lying down.
James Dulkerian, DPT
There is no need to be worried, as this is a fairly common complaint. However, it would be recommended to seek the assistance of a physical therapist. It is great to catch this type of issue early before it becomes painful and the cartilage breaks down under the knee cap. It is typically due to tension of the thigh or quad muscle causing compression of the knee cap (patella) into the joint, causing it to "crack" click or pop. Weakness of the hip muscles and joint mobility can be other factors that a PT would help determine. Then, with treatment and recommendations for exercises to continue with at home, this issue can be resolved. I have cleared these issues in as little as one visit, but, depending on the severity, it may take 6-12 visits.