One of the genuinely useful ideas in Ayurveda is that illness has a sequence, and you can catch it early.
The model is called shatkriyakala — six stages. Sanchaya, accumulation. Prakopa, aggravation. Prasara, spreading. Sthana-samshraya, settling in a weak place. Vyakti, manifestation — the point at which you would say you are ill. Bheda, differentiation into a named chronic condition.
Modern medicine gets involved reliably at stage five. Ayurveda's whole seasonal apparatus exists to intervene at stage one.
And stage one is happening right now. Cold, damp, heavy weather accumulates Kapha in the chest and stomach across late winter. You will not feel it. There is no symptom to feel; that is what accumulation means. What you may notice, if you look for it, is the earliest sign the texts describe: a mild aversion to exactly the foods that would make it worse. Heavy, sweet and cold food starts to seem faintly unappealing. That is the body reporting stage one, and it is easy to override.
When the weather warms in a few weeks, that accumulation liquefies and moves — and becomes the spring cold, the sinus congestion, the heaviness and the allergy season that arrive with such reliability that most people have stopped asking why.
This fortnight is the cheapest possible time to do something about March.