Clomid/OHSS?

Megan • Married 5 years TTC #1 for 3.5 years. Finally successful after a fet with a day 4 embryo. Due may 2017💕 Now trying for #2. FET in January
Hello ladies. I'm needing some help. I'm on cycle day 23 and in some serious pain. I took 100 mg of clomid on cycle day 3-7. For the last week I have had a serious tummy ache. Today it's sharp pains all the way up under my ribs. Nausea. Kidney pain and a tight abdomen. Has anyone else had this? Is this OHSS? Should I see a doctor. I have no idea what to do