Is It Normal To Have Metallic Or Mucosy Taste In My Mouth After Doing Rigorous Work Outs?

Question : Hi there! I've just decided to start getting healthier. I've started doing short workout videos or walking for 30 minutes each day. While walking, I walk quickly to the point where I'm slightly out of breath. When I get home, I'm a little sweaty, but I feel good. On the days that I do the workout videos, which are 10 minutes long and more intensive, I get a metallic or "mucosy" taste in my mouth. This has happened the last 3 times I've done these videos, and I'm outright winded by the end of it. Of course, I had to do some internet research and discovered that it may be called EIPH, it's not uncommon, but I can only find information about it regarding horses and runners. I've been out of shape for the last few years, but I've always been active prior to that. Should I just lower the intensity and walk, or is this something I should get checked out?