This is a two-part question. 1. After a hard-effort ride (for example, last weekend we rode 84 miles with 6,500 feet of climbing) I become hoarse, and it lasts for two or three days. I'm 67 and ride for health and race 8-10 times a year. The issue seems to be becoming more frequent. 2. This past winter I raced in three gravel grinder events with temperatures at the start around 35-45 degrees. The following day my lungs filled with fluid and that lasted for about 4 days. Doctor visits have not led to any improvement.