The Compendium of Caraka 6.17.64

6.17.64

tamasā vardhate 'atyarthaṃ śītaiścāśu praśāmyati/
majjatastamasīvā 'asya vidyāt saṃtamakaṃ tu tam//
iti pratamakasaṃtamakaśvāsau/
rūkṣāyāsodbhavaḥ koṣṭhe kṣudro vāta udīrayan/
kṣudraśvāso na so 'atyarthaṃ duḥkhenāṅgaprabādhakaḥ//

it increases exceedingly in darkness, and is swiftly pacified by cold things; / but when he feels as if sinking into darkness, one should know that as saṃtamaka.
Thus ends [the description of] pratamaka and saṃtamaka dyspneas.
Arising from roughness and exertion, when minor vāta is stirred in the alimentary tract, / kṣudraśvāsa does not afflict the limbs with extreme suffering.