Drug info - H induced Euphoria.

[DDoob]

SWIM would like to know some information from more experienced SWIY H users.

A little introduction.
Recently SWIM managed to get some quality H. SWIM had never done any Opiate/Opioid before just like his friend. The first dose(10-15mg), SWIM got quite euphoric for 2 hours or so. The next day SWIM experienced the same Euphoria again at the same dose.

The third day SWIM didn't feel any euphoria anymore, the dose didn't seem to matter anymore, he would just feel sedated and tired. (Route of administration was Insufflation.)

SWIM thought it was tolerance related, because the first doses of 4-8mg made him sky high, so SWIM stopped using H for 4 days. Now here comes SWIMs question after taking about 100mg via a Vaporizer.

The only thing SWIM experiences is a sedation, calmth and a little warmth. The euphoria that was so pronounced doesn't seem to come back, is SWIM über tolerant in 3 days of use?

With a 4 day pause, I thought the tolerance had a reset or at least SWIM would feel the euphoria again that was so pronounced the first 2 days.

So is the Euphoria a first 2-3 dose things, and will it never come back after that?