According to your query you want to know that why typhoid is positive.
Actually in your case that test known as widal test and it's titration of typhoid bacteria
And it' can show false positive also .
You should do again as Widal test at different lab and
Typhidot IgG and IgM as confirmatory test .
Next Steps
Please take consultation for better evaluation and best treatment .
Health Tips
Please follow good life style as take plenty of fluid and take less spicy and fatty foods and do exercise regularly with yoga and meditation and keep positive attitude to fight any disease and any problem of your life.