Hello, The stomach issues can be related to the use of other medications. I suggest using a gastroprotector such as Prilosec in the morning before breakfast. The tingling in the legs can e related to peripheral neuropathy. I recommend to continue using Lyrica to treat these symptoms. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Dorina Gurabardhi, General & Family Physician