We live two blocks from the beach , 6 in. below sea level. the problem is I found mold in my bedroom closet. we also found it in the kitchen cabinet. I 've been having a bronchial problem. I am worried it could be caused by mold. There is a crawlspace under the house that floods , If it gets water under the house I am worried that mold could be on the other side of the walls.,they are knotty pine. Any advice ?