URGENT HELP! DS 160: Forgot to report previous employment

[Gru79]

Hi,

I recently remembered that i forgot to report an employment i held for about 3 months. I have booked my visa appoinmtnet for H1b Stamping. 

Some more details: I worked for 3 months as a computer programmer with a company. It was unpaid and i was on OPT. While in this job, i got a full time offer. This place is still my current employer, they filed for my H1b and it was approved. I forgot to report this 3 month employment in Ds 160. I am going to India for stamping. Will this be a problem?

Why I am concerned is before the H1b got approved, i had to file for OPT STEM 24 month extension. During this time, I had to report the 3 month position. It appeared on STEM Extension I20. Please help. 

Thanks