Hi I Have Been Hairdressing For 17 Years And The

Hi I have been hairdressing for 17 years and the past 6 months I suffer alot of dizziness while at work but when not working I am fine. I have had tests done and they find nothig wrong with me. I hate this sick feeling I have all the time. I was just wondering if using the chemical at work could be a cause for this. If this is possible what would the symptoms be for hairdressing chemicals? Do you have any idea about this.

Thanks

Frances