Dexmethylphenidate, sold under the trade names Focalin among others, is a central nervous system (CNS) stimulant used in the treatment of attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is in the phenethylamine and piperidine classes of medications. It is the active dextrorotatory enantiomer of methylphenidate.
1 Some allergies cause digestion problems as well. There are also times when you may feel nauseous after every meal. Nausea after meals can also be accompanied with other allergic symptoms, such as, hives or rashes.  Psychological â Sometimes, nausea after eating may also occur due to psychological factors.
Dizziness, light headed, stomach pain, loss of appetite, nausea, no vomiting. especially after I eat. I get dizzy, slightly nauseous and always seem to have a lot of air in my stomach. About once a week I have extreme pain in my stomach and it refers to my chest, back and sides ...