Hi Ms. Twinkie,
No, there is nothing wrong with taking a soluable fiber supplement like Benefiber, Citrucel or Metamucil everyday for therest of your life. Actually, if you have chronic constipation, you should be taking it every day. It's completely safe. Now, about the gas, did the gas happen after you began taking the benefiber? It takes your body a couple of weeks to adjust to the extra fiber in your diet and this results in excess gas. Now, personally, I was not able to take Benefiber. My stomach never adjusted to it so I switched to Citrucel. Some people are able take it just fine.
Hope this helps!