Vomit plant?

Hi everyone,
quick introduction, I'm new to gardening but love the prospect, my family adopted a council property in cranleigh Surrey last august, and we had a garden previously but not to this scale, it's a classic old school council garden, very generous space, very long.
We are novice gardeners but by the time we have spent a few years sorting this garden out and with your help we should be able to feel a bit more confident.
So to start me off my first question to you lovely lot is..
What kind of bush or shrub or other could be making such a beautiful smell, it's fairly localised but I can't pinpoint it at all.
Basically it stinks of puke!
Ive smelt it before here and there during my life, is it a bush that gives off this stench at a particular time of year or after rain?
i don't like it!
thanks for any ideas.
peter.
Posts
Flowering privet. Privet is usually clipped well so does not flower, but if it has not been clipped for a year or so, it flowers and stinks.
Some people hate the smell of mayflowers, I don't mind it, it could be that.
I think Viburnum Tinus smells of puke, but ,strangely , not close up, only from a couple of metres away.
Thanks we have lots of privet around, I cut mine yesterday but the neighbours may well be harbouring a non trimmed bush!
the may flower is something I've not spotted, I'll do a hunt.
So vibernum tinus I may well have.. and if it is this your right, it doesn't smell of vomit close up.
Also Iris Foetidissima smells awful. What shrubs/flowers are in the vicinity of the smell? Post a pic which may help us.
Sorry for the poor pic, could this be v tinus?
Gosh there are loads of different ones, I'll start to upload possible culprits as I can.
Thanks you everyone for your time replying thus far .
Privet when it flowers has panicles of small white flowers.
I think I may have tracked it down, this is the neighbours,
looks like it's being savaged by something but I just did a sniff test ( didn't look weird at all ) and I think I'm getting traces of sick. as you point out, worse from a distance