illness
yes
yes
if you have low levels of hemoglobin, you can expect to live for 12 hours longer.
If it's lowering your immune system and or causing you some stress, then low hemoglobin can trigger a cold sores to break out.
Mastoiditis can cause hearing loss which may result in tinnitus.
It's the other way around. The black stuff is termed "coffee grounds emesis", and is the result of intestinal bleeding. It is the bleeding that is the cause of the low hemoglobin.
Yes, low hemoglobin can cause muscle pain. Hemoglobin is a protein and is attached to red blood cells. Its job is to carry oxygen to the body's tissues. Without oxygen the tissues (including muscle) experience ischemia which is painful. Ischemia is what causes the pain a person has when they have a heart attack, for instance. So if a person's red blood cells are not carrying oxygen (because their hemoglobin levels are low enough), they would have muscle pain.
Yes <1%
Tinnitus? Ringing in the ears? Doubtful...unless you got your ear tattooed, maybe.
hemoglobin is the cause thats why your blood is red
No, asthma is related to low hemoglobin.