Alchohol is a potent GABA receptor ago it's and there are many withdrawal symtoms associated with this. All of your symptoms sound alchohol related to me. This stuff will pass you just have to give it some time. Continue eating a very healthy Diet and do calming exercises such as yoga, tai chi and meditation. Also, check your blood pressure when standing as that can cause your dizziness if it drops. Your still very young and will bounce back. Just make sure you stay off any alchohol or GABA agonists such as benzodiazepines. You dont want to get addicted to something else also. You will be just fine.