I am assuming that you have a Psychopsis Mendenhall 'Hildos'.
Psychopsis orchids will continue to bloom on existing spikes as long as it is healthy. Even if a spike is cut, it can branch out and continue blooming.
Some people claim that their psychopsis continued to bloom year round until it died. But perhaps in reality, it died because it bloomed continuously and never had a chance to recuperate.
On a side note:
Just saying "Menendhall 'Hildos' " alone usually is insufficient information since there could be several genera of orchids sharing the Menendhall grex (specially the Menendhall name).
Having the 'Hildos' there definitely makes it more specific, but still please add the genus name next time