We have a 200 foot deep well installed in 1998. At the time it was drilled, it had a recovery rate of about 15 gallons/min. We have never had any problem getting water, even during a 3 year drought. Suddenly, yesterday, while watering flower beds, the water cut off. After about a minute, it came back on at full pressure, but only ran for less than a minute before shutting off again. This cycle will continue. After shutting off the water for a couple of hours, we are able to run it again for about 15 to 20 minutes. I am praying that there is a cause for this other than our well is drying up. Any suggestions before I call a professional well guy?