Emily.... Errr.... MY washing machine is in the garage on concrete, and truthfully, I don't hang 'round in the garage watching it go thru the spin cycle in order to look for comparisons! <grinning> I CAN tell ya that living in a townhouse with neighbors within a few feet on both sides HAS created a single annual event that DOES have an effect upon my PD and it DOES strongly resemble internal tremor. This is a terrible time physically for me because I can COUNT on this happening as long as I continue to live in my townhouse. In the summer and autumn when I'm running my unit's 20 year old 3 ton forced air conditioner and one particular next door neighbor's running her 4 year old 3 ton air conditioner, if HER air conditioning unit's running alone ,it vibrates at SUCH a swift rate that I can FEEL that vibration thru the concrete foundation of the building. My skin seems to crawl and I feel that Parkinson-y "inner tremor" in my arms and chest wall to the point I want to scream!!! To counter-act HER air unit's aggravating MY physical condition, I end up being forced to run MY air conditioner simultaneously (significantly raising my monthly electrical bill!). My air unit has a slower vibration that generates a more ponderous (for lack of a better word), "feeling" thru the concrete foundation, thus causing no aggravation of my PD symptoms. Due to the 5 months of 100 + degrees weather in L.A.'s San Fernando Valley, my neighbor runs HER air conditioner 24 hours a day to MY running mine maybe 6 or 7 hours daily - PRIOR to her getting that new air conditioner. NOW - if I'm home when my neighbor's running HER air conditioner, I run MY air conditioner to counteract the vibrations caused by her unit (and bless her, she's a dear lady, a good neighbor, and hasn't a clue about any of this). I called a couple of air conditioner service companies to see if there was any way to adjust or calibrate my neighbor's air unit to a different vibration (and I have NO idea how these things work!) and was told "Hahahaha. NO!!" Sooooo... in addition to my own totally PD-generated "inner tremor," I also have a 5-month-a-year "air-conditioner-generated-inner-tremor." (shrugging and sighing) DO you realize that we - your hubby Jim 'n I - have created a whole NEW category of PD symptoms? "Household-machinery-like-or-caused internal tremor!" <rueful grin> Barb Mallut [log in to unmask] ---------- From: Parkinson's Information Exchange on behalf of jim and emily jackson Sent: Friday, January 02, 1998 8:36 PM To: Multiple recipients of list PARKINSN Subject: internal tremors Barb M., Sonia, and others: My husband Jim describes a feeling "kind of like if you're in a house with a wood floor, and the washing machine is spinning and shaking the floor." (We live atop a concrete slab, and no earthquakes here in North Texas! The floor is NOT moving.) Is this anything like what you all experience as internal tremors? [log in to unmask]