Amijoy,
there are genetic common denominators between epilepsy and schizophrenia. That does .N.O.T mean that one will become the other. It might, however, be one reason why both exist in your family.
Chromosome band / disorder or disease
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10q23.3-q24.1 / partial epilepsy

10q24 / partial epilepsy w. Auditory features
10q24-q26 / adhd (adra2 a2-adrenergic receptor)
10q24.3 / polycystic ovary syndrome (pcos)

10q25.3-q26.1 / epilepsy
10q26 / bipolar disorder (susceptibility)

10q26 / schizophrenia
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15q11-q13 gaba-a receptor beta3 and alpha5 subunit gene cluster on chromosome band.
Includes following disorder:
...Angelman syndrome
...Autism
...Autistic/asperger savant skills

...Epilepsy
...Bipolar disorder

15q13-14 / schizophrenia

15q13-14 / juvenile myoclonic epilepsy
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22q11-q12 / epilepsy, partial, with variable foci (2)
22q11.2 deletion bipolar; mixed state & rapid cycling

22q11.2 / schizophrenia, susceptibility to

22q11-13 / schizophrenia, susceptibility to
22q13.1 / autism, succinylpurinemic