Your description lacks many vital details like the duration of the said problem, past medical history including the reason for him being on valparin and other medications, if any, taken in the past. Also, the family history may be relevant, for eg. does anyone in the family has recurrent headaches
, i.e. Migrane? To begin with, I suggest a blood test
- SGPT, to rule out liver
toxicity due to valparin which can cause the vomiting
sensation.Since he must be already under regular treatment of someone from where he is receiving Valparin, I suggest you bring this problem immediately to that physician's notice and let him perform a thorough physical examination.