Yes, it is normal for your body to feel that it needs or wants to evaculate itself if you insert anything in the anus.
The pressure on the sphincter or muscle ring triggers that same sensation that tells you to head to the toilet.
Given time and practice, you can learn to over come this. Some people learn to enjoy the sensation.
Good luck.
By the way, ANY blood that flows is going to be bright red....that's what blood does. In the presence of oxygen, it turns bright read. Only when it's still in the vein is the blood dark red.
Also, blood that goes through the digrestive process is black and tarry if the bleeding occurs in the intestine.
If it looks like coffee grounds, it is from the stomach.
But virtually ANY blood from insertion of anything into the anus is going to be bright red. If it's a trace amount, it may be a small nick or cut. but any continued flow...large amounts, etc, requires medical attention.
yh i get that feeling aswell:/
I have used Vaseline quiet regularly over the years and only experienced pleasure. I never had infections or any of the other.
I must say that I am an advanced student of the ass. I also really like wáter-based. They of course are much easier to clean.
But there are the days in which Vaseline is the only game.