https://www.youtube.com/watch?v=HxvRQ9ZJ8vQ Chiropractic Mobilization will help. Avoid bending in front. Postural Correction- Sit Tall, Walk Tall. Extension Exercises x 15 times x twice daily. Apply Hot Fomentation twice daily.

Please consult me online for detailed evaluation to help her with treatment

Describe more about her movements and daily basis activities if she have only this (you described) issues then go to the physical therapist or found more changed activities like short term memory loss slippery toung etc then go to the  neurologist

Start wrist gripper exercise

She should consult a physician or neurologist as soon as possible.

Tremors aren’t only due to Parkinsons Cardinal signs of parkinsons are slowness in movement, rigidity felt in extremities, tremors would be on intentional or pill rolling tremors are present Other conditions which can cause tremors are lesion in other high centres in brain also in hyperthyroidism Even during muscle fatigue Also if too much caffeine taken

As said these are the symptims.of parkinsons. Whitout any delay consult nearest neuro physician for proper diagnosis and treatment.

Please consultant good neurologist, the symptoms are like to Parkinson disease.