Heartburn and nausea is back...

Ashley • Mommy of an angel, step mommy to two monsters. Baby #2 due March 2016. 😍 All four have my whole heart.
22 weeks today, woke up from a nap and heartburn hit me out of nowhere. Nausea/"morning" sickness has been lingering the past few days also.. What can I take/eat/drink to help?? Preferably drinks and foods, trying to stay clear from any unneeded medicine.