Anti tremor drugs

I am 50 years old diagnosed in 2009 and really struggling with my main symptom.. A Dominant Tremor. I have been taking Sinemet 100/25 for nearly 18 months and with two add-on drugs to treat the tremor which is on my right hand, arm and shoulder and neck.
The side effects have been awful, dizzy, dry mouth and confusion and short time memory loss. Because of this my consultant suggested to wean slowly off both of these anti-tremor drugs, which I started at the end of last year.
Unfortunately my symptoms have rapidly increased with new symptoms of slight freezing,unbalanced and falling several times indoors.

Has anyone experienced this or knows whether weaning off trihexyphendyl or propanolol can cause worsening of symptoms?