Reflexive, reciprocal, and indefinite pronoun

Reflexive pronoun

The most frequent use of a reflexive pronoun (myself, yourselves, etc.) is for emphasis, in which case, as you might expect, it is accented:

I'll write to him my'self.
He did it all by him'self.
Will you be able to come you'self?
She's not very enthusiastic about it her'self.
The villa pays for it'self
When, however, they are used as true reflexives - as the object of the verb or after a preposition - they are not usually contrastive, and therefore not get accented. They usually form part of the tail:
She feels rather 'pleased with herself.
Don't make a 'fool of yourself!
You use accented myself at the end of a comment, with a non-fall tone, to suggest that this is your opinion, but that others may not share it.
I think that's right, | my⤵⤴self. (= I think that's right, | ⤵⤴personally.)
I don't agree, | my⤵⤴self.
I'm not sure, | my⤵⤴self.

〉 Do you know Paris?
No,| I've never been there | my⤵⤴self.
In informal regional English of the north of England myself in this usage is replace by me:
I'm mad at it, | me

Reciprocal pronoun

The reciprocal pronoun each other and one another are usually contrastive, and therefore not accented:

At least Phil and Sue are 'talking to each other

Indefinite pronoun

The same applies to indefinite pronouns someone, somebody, something, anyone, anybody, anything:

Can you 'see anyone?
I've just 'read something | really 'funny.
I can't keep quiet any 'longer. | I've just got to 'tell someone.
The spoken phrase or something (= or something similar) is unaccented when used at the end of the sentence. So are other indefinite pronouns following or in this usage:
Stop 'bothering me! | Ask 'Muriel or somebody
Can I get you a 'drink or anything?
The indefinite pronoun can nevertheless exceptionally receive the nuclear accent for emphasis. Compare:
〉 A: What the 'matter?
》 B: I thought I 'heard someone
〉 A: But there's no one at the 'door.
》 B: I'm sure I heard 'something. (= not nothing)

I can't 'see anyone. (neutral)
I can't see 'anyone. (marked negative)

They didn't 'bring anything. (neutral)
They didn't bring 'anything. (= They brought 'nothing.)
I wouldn't go back there for 'anything. (= I certainly wouldn't!)
Note also:
I won't tell a 'soul. (= I wont tell 'anyone , | I'll tell 'no one.)
I don't like 'either of them. (= I like 'neither of them.)