I think the same too. You may not be grounding properly. Grounding should be done before and after a ritual. It should be done before the start of a ritual or magical working to remove extra energies or anxiety, stress etc which may block your free flow of energy. It is essential to do it after a magical working or a ritual to remove excess energy that may clog up and cause other problems. What you said are mainly the basic symptoms that show that you caontain extra energy within you which clearly states you may not have been grounding well, or as to say, not clearing and releasing well.
these are few tips to do it properly:
* Start your grounding with a meditation.
* if you are using visualization techniques, use it properly and see a clear and real image in your mind as though you are seeing it with your real naked eyes and try to feel these feelings in you too.
* Chanting something or saying something which means almost like this "I am clearing and releasing my extra energies within me to the goddess to bee reused elsewhere usefully" helps you to ficus on your grounding.
* Running your fingers on salt or putting a pinch of salt on the tip of your tongue helps. Common salt or table salt is least preferred though. Try using crystal salts or sea salts. Although, all salts have natural grounding effects.
*having some hematite around you while grounding or hold hematite in your hand and visualizing extra energy flowing into it making the stone glow aids in grounding. Do not forget to cleanse the stone by washing it in a running cold water like your faucet and imagining white light flowing from it onto the water helps cleanse the stone as well.
these are simple tips. Hopes this helps out for you.