Physical health problems affecting the Root Chakra: From a physical standpoint, constipation, anemia or bladder dysfunction may be some of the symptoms of a weak Root Chakra, as well as urinary tract infections, cancer of the colon, leg and knee problems or even problems with the feet.  
There is a joke where all the parts of the body were talking and trying to figure out who was the most important.  "Oh, I'm the most important, " said the brain, because I do all the thinking.   "No," said the heart, "I'm the most important because I am the center of love."  As they were all arguing and posturing, the anus simply closed its mouth and held its breath.  In no time at all, the entire body agreed this was the most important area of the body.  
I hope that joke made you laugh.  In reality, we hang onto things too tightly and often have trouble letting go.  Hanging on is an issue of fear and not feeling safe.  We believe if we can just control and hold on, then things will be OK.  But in the realm of our health at all levels, holding on too tightly never serves us and can cause a backup in our entire system that is really unhealthy.  

Since the color of the root chakra is traditionally red, we also have things we say such as "seeing red", meaning we're angry.  Of course, we want a healthy red color in our root chakra.  Not a bloodthirsty or rusty red.  Anger often hides fear.  Anger often riles us up to fight or battle, because underneath we're so afraid that we'll be hurt, die, or we will not survive.  
To help release yourself from this type of tightness in the root chakra, remember to breathe and exhale.  Breathe all the way down to the root chakra and out.  Also, imagine giant roots of a tree extending downwards from your root chakra, down through your legs and out the bottoms of your feet and let them go all the way to the center of the earth. Also, drop your tail.  Yes, you have an energetic tail that drops from the tip of your tailbone all the way down through the crust and mantle and rich darkness of the earth all the way to the center of the vital life force ocean in the center of the earth.   Drink deeply from the beautiful energy in the middle of the Earth Mother, Gaia, and bring it up through your roots like the roots of a tree, thru the trunk of your body, out your arms and out your head, letting your branches reach for the sky.  Drink deeply from the earth mother any time you need it.  Feel your feet kissing the planet as you walk.  KNOW how deeply loved you are, and that before you ask, all your needs will be met.  
Be blessed.  Happy November.  There is much to be thankful for.  
love Loretta
P.S.   Watch out for Mercury retrograde in Scorpio for the next three weeks.  Talk a little gentler.  Be kind.  Try not to get riled up.  We are going through a very deep and transformative few weeks.  If something is dying, realizing something is being born, rising like the Phoenix from its ashes.  It may be time to reconstruct yourself, remodel, redo, rethink, and face your darkness straight on without running away.  Its always better to do that.