I am being treated for psoriatic arthritis and hypothyroidism... and now they think i have sjorgens syndrome bc of mouth problems! is that possible?

Yes: It is fairly common for someone with one autoimmune disease to concurrently have one or two other autoimmune diseases. I have seen patients with hypothyroidism, psoriasis and sjogren's. This combo may not be so rare.

They go together!: Hashimoto's thyroiditis and psoriatic arthritis go hand in hand. Both are autoimmune and are inherited. Who know this by the passage of certain body immune markers called hla type. I habe more patients with psa and hypothyroidism than any other form of arthritis.