Or maybe hypophantasia : https://aphantasia.com/topic/hypophantasia/
BlueSerendipity8
Imagination is a spectrum as far as I know only the two ends have a name.
Vviq is often used to rate visual imagination : https://davidfmarks.net/vividness-of-visual-imagery-questionnaire-2/
Aphantasia can affect other sensory modalities as well but I'm not aware of any methods to measure
Nice to see that it's happening
Mental imagery is a spectrum. At one end of the spectrum, you have hyperphantasia, and at the other end, aphantasia. While aphantasics score 1 on the Vividness of Visual Imagery Questionnaire (VVIQ) and make up about 1% of the population, hyperphantasics could be around 6% of the population (*). According to your description, I would say that you would score higher than I do on the VVIQ (more than 1 ;-))
I would suggest that someone who does not lack multisensory mental imagery—what scientists refer to even for non-visual senses—may be able to vividly recollect past events from a first-person perspective (often described as a time travel flashback) using the senses that are not affected. Therefore, they may not be severely impacted or affected at all.
I would say that I do have SDAM, although I don't have an official diagnosis. In fact, I find the 'S' (Severe) label a bit overstated. The reason I identify with SDAM is that I have multisensory aphantasia, which means the only way I can access my past is through semantic memory. I am unable to re-experience past events from any sensory perspective, nor can I project myself into the future in that way.
Honestly I don't remember, I may have used this one: https://aphantasia.com/study/vviq/ I didn't gave it because I don't know if you need to submit it with PII or not.
On my side I am not able to to conjure any mental sense, no taste, no voice (no innerspeech as well), no pictures, ...