I’m not certain what the connection is between the poor hand circulation and Eagle’s, but I know they treat Raynaud’s with a stellate ganglion block, and the way you confirm correct location for the SG block is the hand on that side gets warm and flushed. Also, repeated stellate ganglion blocks are an option for treating Eagle’s Syndrome when surgery isn’t an option. The blocks gave me complete but brief relief and things were worse afterward, but there must be some part of the sympathetic trunk getting compressed that causes this, and blocking the stellate ganglion temporarily interrupts the ratty signals