Many areas are a bit short on rainfall this year.. and as a result, well pumps are pulling water from farther away and from deeper regions of the aquifer your water comes from.
Dissolved oxygen is most likely the cause of your cloudy water.. Water that has been under fairly high pressures, is now being able to release it's oxygen content.. Actually, it's much the same thing when you open a soda bottle.. The Co2 is under pressure and when you open the cap, you release that pressure and the bubbles are then released..
One thing you could check Barry, is to draw a fairly large container (tall glass etc..) of water, and put a plastic or paper cup over the top of it, to collect as much of this 'air' as possible.. Once the water is clear (all the air released), take the paper cup outside (covering the bottom to be sure to trap any collected air in the cup) and try to light it.. (being careful of course).. You may want to try to collect the air from a few different glasses of water, just to be sure you have a fairly large air sample. IF the trapped air in the cup burns, the issue is with methane.. also known as swamp gas in some areas.. and an issue that is quite common in many areas of the country. IF it doesn't burn, 99% chance it's just plain air or dissolved oxygen.. and nothing to worry about.
I just checked my FIL's water a few weeks ago for the exact same issue.. air showing up that wasn't there before..
There are tests for measuring the dissolved oxygen level in water, but it has to be done on site by a trained person with the proper test kit..
Getting your water tested every now and then is a very good idea for everyone - on a well especially..
Here is a link to a home test kit that I actually was part of through the tool testing program here at Handy.. I was fairly impressed as to the accuracy of the results as I do have my water tested by a lab every 5 years or so.. which is not as often as recommended, but in my particular area, the aquifer is quite safe.
http://www.h2okits.com/site/1286521/product/QC%20PRO-II%20Well%20Water%20Test%20Kit
Here is another kit that would be a great way to start if you have never had your water professionally tested...
http://www.h2okits.com/site/1286521/product/Total%20Water%20Quality%20Test%20Kit
The tests are easy to do and you just need to be sure to read the instructions of each one BEFORE starting each test.. Most results will be either instant or within a few minutes.. The bacteria test takes 48 hours...
Most likely, there is no problem here Barry.. but double check the burning of the air from the water, just to be sure..
Hope this helps some...
Ez